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Sleep Cycle: Sleep analysis & Smart alarm clock

Sleep Cycle: Sleep analysis & Smart alarm clock

Sleep Cycle AB

Want to sleep better? Let Sleep Cycle coach you.

4.6 Ratings 531K+ Reviews 5M+ Downloads

Ratings & Reviews

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  • img Community
    If one day you sleep until 11 AM, then wake up at 6 the next, your body can get confused and your health suffers as a result. Sleep Cycle helps by analyzing your sleeping patterns, making sure that you wake up during the lightest phase - feeling totally refreshed.
    img by Antonio
    2 years ago
  • img Community
    Staying awake and alert during the day starts with a good sleep the night before. I've been using Sleep Cycle for over 2 years and have seen a drastic change in how awake I feel. The days when I wake up at my lightest sleep cycle are always the days that my eyes feel less droopy at my computer screen or behind the wheel.
    img by David
    1 year ago
  • img Community
    Getting a healthy 7 hours of sleep is extremely hard in today's fast-paced world. In addition to letting you set an alarm reminding you to go to bed, Sleep Cycle will wake you up during a period of light sleep. Helping you get a good nights rest, so are ready to take on the new day.
    img by Sharon
    1 year ago
  • img Community
    Many of us struggle to continuously get 6-8 hours of sleep per day. A simple hack would be track this number and ensure you can monitor how much sleep you get overtime. This will help you progressively improve on this number too.
    img by John
    1 year ago
  • img Community
    Sticking to your sleep cycle is the best way to guarantee you get a full 8 hours of sleep. This app will help you track your sleep and keep you on schedule with alarms that will wake you up at the right time each morning.
    img by Beverly
    1 year ago
  • img Community
    You can start your day feeling well-rested and energized after having a good night's sleep by using this tool. It uses sounds/vibrations to determine whether you're in either 3 dream states (light sleep, deep sleep, or REM) and chooses the perfect time when you'll feel most energized to wake you, within 30 minutes of your set waking time.
    img by Sammy
    1 year ago
  • img Community
    Tracking your sleep can tell you a lot about the best time of the day to nap and for how long. WIth a smart alarm clock, you can wake up after 30 minutes of deep sleep and feel just as refreshed as a 2-hour nap.
    img by Aubrey
    5 months ago
  • img Expert

    Why we chose Sleep Cycle:

    • Free app with a premium upgrade for $39.99 per year
    • Smart alarm wakes you up at the optimum point in your sleep cycle, so you don’t feel groggy. (Almost all the apps offer this, but we found this one worked best)
    • Helps you track factors that may be impacting your sleep — coffee, exercise, and more
    • Extensive library of pre-sleep relaxation content includes music, relaxing sounds, and guided meditations
    • Tracks sleep over time so you know where you stand
    • Prominently displays metrics for the time in bed vs. time asleep -- a useful tool for insomniacs
  • img Expert
    1. Get your perfect night's sleep! Sleep Cycle monitors your movements while you sleep in order to wake you up at the most optimal moment
    2. Receive high-quality graphs that outline your sleep patterns throughout the night for a visual understanding of your sleeping habits
    3. Did you drink caffeine before bed? Do you go to bed at a consistent time? With Sleep Notes, jot down thoughts and ideas about your sleeping patterns

    Reviewed by Katelyn on February 5, 2018

  • It’s ok, more for entertainment Sep 4, 2020

    By Mahadevi9
    I like the program, wish it were more accurate. I sometimes suffer from insomnia and wanted to track how much sleep I was actually getting. This program doesn’t register that I’m waking up in the middle of the night. I’ve taken to taking with me if I get up and walk around, just to have it show up as awake for a minute. When I watch movies for an hour it thinks I’m asleep. I’m watching the movie on the same phone as the app - you’d think it’d realize something. Apparently according to this app I get a great nights sleep almost every night. It also thinks I must be doing great on minimal sleep since that’s what I get many weekdays. I wake up most mornings not feeling rested, and don’t sleep through the night, but this app isn’t going to help track that. Amusing, for that I’d give it 4 stars. I’d give it 5 if it actually tracked when I was awake , and tracked the weather correctly ( massive storm all night doesn’t even show up) and if the air pressure tracker worked. Yes wifi and cell signal on. They need a feature to plug in how many hours of sleep I need at night- I wasn’t born yesterday- and set my own goals for sleep, instead of deciding 6 hours is my ideal, which is unhealthy information to give someone who may not realize only few people need less hours. Tried a couple apps, this one still seems the best at tracking anything.
  • It’s ok, more for entertainment Sep 4, 2020

    By Mahadevi9
    I like the program, wish it were more accurate. I sometimes suffer from insomnia and wanted to track how much sleep I was actually getting. This program doesn’t register that I’m waking up in the middle of the night. I’ve taken to taking with me if I get up and walk around, just to have it show up as awake for a minute. When I watch movies for an hour it thinks I’m asleep. I’m watching the movie on the same phone as the app - you’d think it’d realize something. Apparently according to this app I get a great nights sleep almost every night. It also thinks I must be doing great on minimal sleep since that’s what I get many weekdays. I wake up most mornings not feeling rested, and don’t sleep through the night, but this app isn’t going to help track that. Amusing, for that I’d give it 4 stars. I’d give it 5 if it actually tracked when I was awake , and tracked the weather correctly ( massive storm all night doesn’t even show up) and if the air pressure tracker worked. Yes wifi and cell signal on. They need a feature to plug in how many hours of sleep I need at night- I wasn’t born yesterday- and set my own goals for sleep, instead of deciding 6 hours is my ideal, which is unhealthy information to give someone who may not realize only few people need less hours. Tried a couple apps, this one still seems the best at tracking anything.
  • May 8, 2021

    By Tobias Dahl
    I have been using this for years. Used it on my old iPhone too. I'm on an s20 Ultra now. Worked fine on both phones. No issues ever throughout the years. It always wakes me up perfectly. The perfect time where I'm not even sleepy anymore. It's magic. Thank-you for making this app!
  • Alien technology!!! Dec 5, 2017

    By MiSteve1
    I love waking up early but I struggle so much actually doing it. I literally set about 5 alarms to try to get myself out of bed. And if I don't set an alarm (because I read your body will wake itself up when it has had sufficient rest) i sleep for 10-12 hours. My first night using this app I was a little weary about if it would actually work. I set a few other alarms after when it was supposed to wake me up just so I wasn't late. BUT IT WORKED! It went off about 6:20 because I said I wanted to get up between 6:15 and 6:45 and I woke up turned it off and was expected to fight myself to stay awake like norma. This didn't happen. I felt perfectly rest and felt like I had energy all day. I fell like this app is some kind of alien technology used to give me more sleep in order to prepare me for a study they are doing. Or that this is the technology Batman used in order to only have to sleep 2 hours a night. Even if you are skeptical I would say try it out. I haven't used the premium features that you have to pay for, and with only using the free section this is my opinion. Try it! Just seize the opportunity to easily wake up in the morning. Or spend thousands of dollars on a new mattress. I guess it's your choice.
  • May 6, 2021

    By Daniel Bahl
    The essential features are free, it's incredibly easy to use and brilliantly designed. If you put your faith in this app it really will help you achieve optimal sleeping patterns. It even detects the various sleep stages you're in, when you were in them and for how long. It also offers free, peaceful and anxiety relieving ambient background songs to put you to sleep and an equally tranquill alarm which has been designed to wake you up in perfect peace. Just so grateful to be sleeping well again
  • Really solid Jul 23, 2018

    By DCpdx
    The app is great, I’ve had it for years. I don’t have a ton of confidence in the accuracy of their claim for your sleep efficiency each night, but it’s probably not far off. What I love most is the snooze...it senses you tapping the phone to activate snooze! So you don’t have to grab your phone and try to find a brightly lit little button in a dark room when you don’t want to b opening your eyes—just physically tap the phone anywhere! In fact, I just tap my nightstand and that is enough to silence the alarm for the snooze! My one big complaint, however, is a change that was made a couple months ago. Now you have to unlock your phone to turn it off. It used to be that the screen would dark all night, but it wouldn’t be locked, so when the alarm goes off in the morning you just see the app with an off button. But now, the phone auto-locks, so in the morning when it’s time to turn off the alarm, all you see are all the notifications on the lock screen that came in all night. So you have to fight those to get to the unlock, where you can get to app to turn off alarm. Super annoying. It ruins an otherwise nice experience, and does so at the worst time: when you are waking up in the morning. (The developer said this due to a change in policy from Apple, and they’re working on a fix. Let’s hope one comes soon!)
  • May 6, 2021

    By Daniel Martinsen
    The app is fantastic, but it requires a lot of power and even though I charge my phone, it has 30% when I wakes up. It so also say that I am totally awake in the middle of the night when I sleep, so it's something weird.
  • May 6, 2021

    By Desf ʕっ•ᴥ•ʔっ
    It's making a huge difference in my sleeps now, never feel much better than ever with this app. Only thing that l don't liked so much was some features be behind paywalls. But at least the app is working with me.
  • A Life Saver Sep 15, 2018

    By canipleasejustsum
    Am I a morning person? No, absolutely not. Alas, I have a full twelve hour schedule that requires me to be up and ready pretty early in the morning but actually waking the hell up? My body thinks that’s a hilarious concept. I’m naturally a very deep sleeper, but I’m also a night owl who prefers staying up late, so often times I’ll find myself in bed from anywhere between 10:30 pm - 12:00 am and then I’ll have to wake up at about 6:30 am so I can properly get ready for school and then work afterwards. As a college student with 17 credits it’s very hard to not be tired. I decided I needed something to help me wake up easier, since sleeping through alarms or waking up a bleary mess and falling back asleep was just not working for me. I gave this a shot as a last ditch attempt and what would you know? It worked. I just used this app once, last night at the time of writing this and boy am I satisfied. I didn’t think it would work on me to be entirely honest, but it did and I woke up feeling a lot better than I would’ve with an alarm jolting me awake. This alarm is gradual and soft and even when it’s time for you to wake up it doesn’t fee invasive and obnoxious. I’m looking forward to using it continuously!
  • May 7, 2021

    By Carlos Losa
    This app wakes you perfectly with ease plus tracks pretty well sleep cycles. The only thing I would like to have updated is deep sleep counter, to know how many hours of it I get. Keep it up.
  • May 8, 2021

    By Roko Vlogs
    It's good it realy works but I would like to upgrade but on a monthly plan not yearly and they have only yearly It has a good alarm and it worked perfectly but a monthly subscription would be amazing
  • Doesn’t do the job. Jul 6, 2018

    By Positively Annoyed
    After a month of premium (paid) service this ‘Sleep Cycle’ app isn’t working, and there isn’t any way to contact the app developers. I set the app to start recording my sleep and set down my device in the very specific way requested, with it plugged in even, and at some point during my sleep it turns off and records nothing. Last night it recorded 1.5 of the 8 hours I actually slept. I can’t edit to correct a specific sleep cycle. I can’t create records that have only basic information, like how many ours I slept. I have many night that have gone unrecorded and that is the information that goes into their stats. Stats based on incorrect information are useless! So what exactly does ‘premium’ service get me? Nothing. Who cares if I have bad and incomplete information backed up? All the other stats I can easily look up on my own, for free. Don’t buy the premium service. It is a complete waste of money. I also tried ‘Life Cycle’. It doesn’t track well. You have to fill in a lot of information and that is pointless when the map location is incorrect and, again, the app doesn’t allow you to edit or correct their mistakes. Incorrect information is useless. Neither app is worth paying for. Response to app developer response: why would you think I hadn’t already tried the simple ideas? I did that. I rebooted my device as well. None of the easy-fix options have helped. If they had a review like this would just be petty instead of helpful to others.
  • May 5, 2021

    By Fabio Colturri
    The app does not work and I am denied a refund. - the alarm does not ring - the recording of sleep activity works every once in a while, most of the times results in a flat line or shows a 5 minutes sleep even if I keep it active for the whole night. Do not buy this.
  • Really good Jun 3, 2020

    By mblling
    I like it’s softer alarm sounds to wake me up. It’s nice to know if you snore while sleeping, and most of the time the sleep cycle thing looks accurate. I find that it’s really off in when you fall asleep (saying I fell asleep immediately even though I stayed up longer) or in waking up (says I was sleeping soundly until the alarm but In reality I was just awake and relaxing) I’ve never really found it to follow any scientific knowledge to wake me up, it just gets me up either at the first minute of my window or the last minute, but that could possibly be due to the fact that I don’t have a bedside table and sleep with it on the windowsill next to my bed. There’s also, I haven’t figured out why, this thing it does sometimes where the alarm doesn’t go off at all, and it just gives you a little silent “good morning!” Notification if you set it up to wake at a certain time. Obviously this doesn’t wake me up. I’ve been lucky enough to just naturally wake up about 10 or so minutes after my alarm each time, but it’s dangerous if you wait until later to wake up. I also haven’t found a way to set it to just repeat on its own every night, you have to manually tell it you’re sleeping now and set an alarm every night. So, I would say this app is good if you want a gentle alarm to wake you up for things you want to do in the morning sometimes, but not good if you need it for important things you’re waking up for.
  • Was the Best, Now Sub Par. Dec 13, 2020

    By ElJefeTX
    I purchased Sleep Cycle several years ago and WAS a long time Sleep Cycle premium user. Sleep Cycle’s functionality has fallen behind competing apps that have emerged in recent years, many of which have a power nap option built in. The separate Power Nap app this developer sells was last updated FIVE YEARS ago, making it supper buggy and unusable (unless you’re still using an iPhone 3G). Also, the Apple Watch and iPhone apps work independently of one another. So, if you set an alarm on your phone, it will not sync with the Apple Watch app and vice-versa. Sleep Cycle WAS best in class for a long time, and Sleep Cycle still wins on UX IMO. If you read the developers responses to reviews they seem like a great group... the type of company you want to see beating the competition. Also, they deserve BIG props for allowing their early customers who purchased the premium app to maintain premium functionality after switching to a subscription model, excluding cloud backup. I actually added the subscription service, partly for cloud backup, but mostly because I was so impressed with the way they respected their early customer base when moving to subscription service. I would go back to Sleep Cycle if updated with the integration power nap functionality, Automatic sleep tracking, Apple Watch heart rate tracking, Apple Watch/iPhone apps sync, and other key functionalities now commonplace in the best sleep apps.
  • Used to be great, but went to garbage Oct 25, 2019

    By Olushka
    I have had this app since 2011. I loved it and recommend it to everyone I knew. Regretfully, starting with the last major update, it has gradually undone all the things I fell in love with. 1. User Interface. It’s been about a year since it was changed, and I still cannot get used to the new clunky cartoonish UI, which apparently was designed by a toddler. The sophisticated slick and polished user interface, no more. I figured OK, it’s just a form, let’s focus on substance. Well... 2. The reliability of the analysis and features went down the drain. The app shows me as being asleep, when I am not, and vice versa. In fact it will show things like snoring and being awake at the same time. Really? 3. Woke me up randomly at 3:30 am instead of 6:30. I kept snoozing it, wondering why I just can’t wake up, to finally open my eyes and see 3:45 on my alarm. HOW? I know I did not make an error. The alarm still shows as being set for 6:30. The only thing I can think of is that I came home from a location with a different time zone (3 hours early) that day. Was this the cause of screwed up internal sleep cycle clock? But cmon. When I set the alarm the night before, the current and the wake times were shown correctly. Needless to say, I could not go to sleep after, and was off my game the entire day. Ironic, that the app you get to help your sleep, ruins it for you. I am uninstalling and moving on to other apps. Done with this nonsense.
  • So disappointed Dec 22, 2018

    By Asdfかう
    I’ve had this app for years and relied on it to wake me up on time and give me insights on my sleep quality with little to no problem. And it did just that, until recently. I set the app’s alarm one night, as usual, and went to bed. When I woke, I realized that I overslept when this app alarm was supposed to wake me. I briefly considered the possibility that I set the wrong time for my alarm. So I open the app and what I found bewildered me. Not only did it seem like the app wasn’t tracking my sleep at all the previous night, but ALL of my sleep data was gone. Erased. Years of insights wiped from memory. But I thought, “this app is still a good alarm to wake up to” so I used it to set an alarm for the next day. I fall asleep that night and wake up. The sun is shining through my window. That’s my first clue that something is off. I set my alarm for 5 am, when the sky is still dark. So obviously, I overslept again. I open the app, trying to find some acceptable reason for me not waking up to it, hoping that I was doing something wrong and that this app that I’ve trusted for years wasn’t suddenly malfunctioning. Unfortunately, it was the app. Once again, it didn’t seem to be analyzing my sleep patterns and no insights from my recent rest appeared. To top it off, this was the second day in a row that I woke up late for work. This app has disappointed me in so many ways. The only positive thing is that I didn’t spend any money on this. Do not download.
  • May 7, 2021

    By J Viljoen
    I got up 4 times (twice for the dog once for myself and once for my kid) last night and was awake in bed at least 5 other times too to tuck my son in over and over (we sleep in the same bed). Also if I turn in bed I'm aware of everything so I definitely wake up during turns too. The app says I was awake ONCE🤷‍♀️🤷‍♀️🤷‍♀️ Seriously inaccurate!👎
  • Should have read more reviews Mar 2, 2021

    By suzyQ3210
    I can probably count the number of reviews I have given in my life on one hand. It’s just not something I do. But as I’ve aged, I realize the importance of quality products and the need to celebrate them. Or, in this case, the need to express disappointment in something that was once great. I’ve had this app for about a month and up until the last few nights it has been working really well. So well, that after the first few days I felt I just had to upgrade to the premium version at $29/year (paying for apps is also something I rarely do). Zoom to this morning to me taking the time to write a review even though I’m already late for work, since I woke up for the third time in a row on my own without a peep from the app, the notification silently displaying, “good morning!” as if it actually did its job. No, you didn’t do your job, app; instead you only captured a portion of the night, or recorded my coughing/snoring but didn’t tell me how long it occurred. Of course my quality was subpar when you think I’ve only been asleep for 3 hours. I could deal with it messing up the recording/data a bit, but when I can no longer rely on the alarm clock *that I paid for*, what good is this app? This used to be such a great tool. I think that’s what makes all of this worse. Two stars for what it used to be. I guess I’ll be looking elsewhere.
  • It is nice when it works but.... Jul 12, 2020

    By sunriseon65
    Tried this out for a few weeks and tried to primarily use the Apple Watch instead of the phone to see how the watch app works. First, there is no option to change between hours and minutes so you must twist the crown for an unnecessary amount of time in order to change your alarm from 6 AM to 11AM. Second, you cannot use it WITHOUT the alarm which bothersome when you would rather just track the sleep and not use an alarm. Finally, it does not sync to Apple health consistently if using only the Apple Watch. I never slept to the alarm that I set, which was usually set to 11 AM so I would switch it off before the alarm hit. Sometimes it would sync to Apple health but most nights it would not. I would even get an alert on my phone saying it did sync to Apple health then I would open the app and find that there was no information for that night. Kind of a big strike against a sleep tracker for the watch if it cannot stand alone from its iPhone app when it advertises as such. The app for the phone works fine by itself. I didn’t really see a noticeable difference in tracking when using the phone app versus the watch app, however, with all the issues I mentioned above, I am not sure how this ended up an “editor’s choice” when there are some obvious problems with both the design and operation of the watch app.
  • Apr 12, 2021

    By Tyler Russell
    Paid version, many years, iOS & Android: Finally giving up on this. Around when it began pushing audio rather than accelerometer (movement) tracking (2? 3? years ago), it started degrading. I don't need extra 'features' like white noise, stories etc. I want a sleep tracker that works. Tracking (audio) highly inaccurate now, & alarm 'tap to snooze' works half the time, so I wake up angry... Screen lock disables alarm shut off AND app shutdown (Moto G5 Play). Used to be 5 stars, now it's garbage.
  • img Community
    If one day you sleep until 11 AM, then wake up at 6 the next, your body can get confused and your health suffers as a result. Sleep Cycle helps by analyzing your sleeping patterns, making sure that you wake up during the lightest phase - feeling totally refreshed.
    img by Antonio
    2 years ago
  • img Community
    Staying awake and alert during the day starts with a good sleep the night before. I've been using Sleep Cycle for over 2 years and have seen a drastic change in how awake I feel. The days when I wake up at my lightest sleep cycle are always the days that my eyes feel less droopy at my computer screen or behind the wheel.
    img by David
    1 year ago
  • img Community
    Getting a healthy 7 hours of sleep is extremely hard in today's fast-paced world. In addition to letting you set an alarm reminding you to go to bed, Sleep Cycle will wake you up during a period of light sleep. Helping you get a good nights rest, so are ready to take on the new day.
    img by Sharon
    1 year ago
  • img Community
    Many of us struggle to continuously get 6-8 hours of sleep per day. A simple hack would be track this number and ensure you can monitor how much sleep you get overtime. This will help you progressively improve on this number too.
    img by John
    1 year ago
  • img Community
    Sticking to your sleep cycle is the best way to guarantee you get a full 8 hours of sleep. This app will help you track your sleep and keep you on schedule with alarms that will wake you up at the right time each morning.
    img by Beverly
    1 year ago
  • img Community
    You can start your day feeling well-rested and energized after having a good night's sleep by using this tool. It uses sounds/vibrations to determine whether you're in either 3 dream states (light sleep, deep sleep, or REM) and chooses the perfect time when you'll feel most energized to wake you, within 30 minutes of your set waking time.
    img by Sammy
    1 year ago
  • img Community
    Tracking your sleep can tell you a lot about the best time of the day to nap and for how long. WIth a smart alarm clock, you can wake up after 30 minutes of deep sleep and feel just as refreshed as a 2-hour nap.
    img by Aubrey
    5 months ago
  • img Expert

    Why we chose Sleep Cycle:

    • Free app with a premium upgrade for $39.99 per year
    • Smart alarm wakes you up at the optimum point in your sleep cycle, so you don’t feel groggy. (Almost all the apps offer this, but we found this one worked best)
    • Helps you track factors that may be impacting your sleep — coffee, exercise, and more
    • Extensive library of pre-sleep relaxation content includes music, relaxing sounds, and guided meditations
    • Tracks sleep over time so you know where you stand
    • Prominently displays metrics for the time in bed vs. time asleep -- a useful tool for insomniacs
  • img Expert
    1. Get your perfect night's sleep! Sleep Cycle monitors your movements while you sleep in order to wake you up at the most optimal moment
    2. Receive high-quality graphs that outline your sleep patterns throughout the night for a visual understanding of your sleeping habits
    3. Did you drink caffeine before bed? Do you go to bed at a consistent time? With Sleep Notes, jot down thoughts and ideas about your sleeping patterns

    Reviewed by Katelyn on February 5, 2018

  • It’s ok, more for entertainment Sep 4, 2020

    By Mahadevi9
    I like the program, wish it were more accurate. I sometimes suffer from insomnia and wanted to track how much sleep I was actually getting. This program doesn’t register that I’m waking up in the middle of the night. I’ve taken to taking with me if I get up and walk around, just to have it show up as awake for a minute. When I watch movies for an hour it thinks I’m asleep. I’m watching the movie on the same phone as the app - you’d think it’d realize something. Apparently according to this app I get a great nights sleep almost every night. It also thinks I must be doing great on minimal sleep since that’s what I get many weekdays. I wake up most mornings not feeling rested, and don’t sleep through the night, but this app isn’t going to help track that. Amusing, for that I’d give it 4 stars. I’d give it 5 if it actually tracked when I was awake , and tracked the weather correctly ( massive storm all night doesn’t even show up) and if the air pressure tracker worked. Yes wifi and cell signal on. They need a feature to plug in how many hours of sleep I need at night- I wasn’t born yesterday- and set my own goals for sleep, instead of deciding 6 hours is my ideal, which is unhealthy information to give someone who may not realize only few people need less hours. Tried a couple apps, this one still seems the best at tracking anything.
  • May 8, 2021

    By Tobias Dahl
    I have been using this for years. Used it on my old iPhone too. I'm on an s20 Ultra now. Worked fine on both phones. No issues ever throughout the years. It always wakes me up perfectly. The perfect time where I'm not even sleepy anymore. It's magic. Thank-you for making this app!
  • Alien technology!!! Dec 5, 2017

    By MiSteve1
    I love waking up early but I struggle so much actually doing it. I literally set about 5 alarms to try to get myself out of bed. And if I don't set an alarm (because I read your body will wake itself up when it has had sufficient rest) i sleep for 10-12 hours. My first night using this app I was a little weary about if it would actually work. I set a few other alarms after when it was supposed to wake me up just so I wasn't late. BUT IT WORKED! It went off about 6:20 because I said I wanted to get up between 6:15 and 6:45 and I woke up turned it off and was expected to fight myself to stay awake like norma. This didn't happen. I felt perfectly rest and felt like I had energy all day. I fell like this app is some kind of alien technology used to give me more sleep in order to prepare me for a study they are doing. Or that this is the technology Batman used in order to only have to sleep 2 hours a night. Even if you are skeptical I would say try it out. I haven't used the premium features that you have to pay for, and with only using the free section this is my opinion. Try it! Just seize the opportunity to easily wake up in the morning. Or spend thousands of dollars on a new mattress. I guess it's your choice.
  • May 6, 2021

    By Daniel Bahl
    The essential features are free, it's incredibly easy to use and brilliantly designed. If you put your faith in this app it really will help you achieve optimal sleeping patterns. It even detects the various sleep stages you're in, when you were in them and for how long. It also offers free, peaceful and anxiety relieving ambient background songs to put you to sleep and an equally tranquill alarm which has been designed to wake you up in perfect peace. Just so grateful to be sleeping well again
  • A Life Saver Sep 15, 2018

    By canipleasejustsum
    Am I a morning person? No, absolutely not. Alas, I have a full twelve hour schedule that requires me to be up and ready pretty early in the morning but actually waking the hell up? My body thinks that’s a hilarious concept. I’m naturally a very deep sleeper, but I’m also a night owl who prefers staying up late, so often times I’ll find myself in bed from anywhere between 10:30 pm - 12:00 am and then I’ll have to wake up at about 6:30 am so I can properly get ready for school and then work afterwards. As a college student with 17 credits it’s very hard to not be tired. I decided I needed something to help me wake up easier, since sleeping through alarms or waking up a bleary mess and falling back asleep was just not working for me. I gave this a shot as a last ditch attempt and what would you know? It worked. I just used this app once, last night at the time of writing this and boy am I satisfied. I didn’t think it would work on me to be entirely honest, but it did and I woke up feeling a lot better than I would’ve with an alarm jolting me awake. This alarm is gradual and soft and even when it’s time for you to wake up it doesn’t fee invasive and obnoxious. I’m looking forward to using it continuously!
  • May 8, 2021

    By Roko Vlogs
    It's good it realy works but I would like to upgrade but on a monthly plan not yearly and they have only yearly It has a good alarm and it worked perfectly but a monthly subscription would be amazing
  • Five-star app with one small shortcoming Mar 13, 2018

    By eyv
    What can I say; it’s the best sleep tracking app in the App Store! Great set of features, very VERY accurate (audio tracking), good HealthKit integration, heart rate support, etc. A few minor bugs linger, mostly due to daylight savings time (UGH!), but not a big deal. One suggestion: why not allow heart rate optionally when falling asleep as well, rather than when just waking up? I know there are other dedicated apps for this, but seeing as the functionality is already built it, it seems like a natural extension of the sleep-wake “workflow”. One real complaint (and the reason I rated 4 rather than 5): the inconsistency in the subscription model. I don’t mind paying for continuous cloud service, because it is a continued investment to run. However, for us early adopters, charging full price for sync seems odd — we paid for the app when it came out, so if there’s no discount for sync, it’s as if we wasted the money buying the app, and have to pay the same yearly amount as those who got the app for free. Again, I don’t mind paying for a service, but I would prefer a discounted price. I know early adopters are only a small part of the user-base, but we do still exist! ;)
  • May 5, 2021

    By Bon Jovi
    Absolutely amazing. I never wake up to alarms. I am known for having my alarm blare next to my ears for 15 minutes before a sibling gets up to turn it off themselves from their room. The alarm I have set very softly reaches into my deeper dreams and gently pulls me out and awake. idk how to really describe it. The wake up interval is extremely helpful for me too as I struggle to wake up at a very specific time. I highly recommend this app.
  • Absolutely positively Love this APP !!!! Oct 7, 2018

    By Themanserg
    I always wake up at night close to hourly, I couldn’t figure out that I was never satisfied in the morning with how I slept or why I woke up exhausted every morning . So I was browsing through just App Categories to find something new to pique my interest when I came across this type of alarm clock that will gradually wake up over the course of 45 minutes instead of just being woken Abruptly and it makes an amazing difference . Every morning when you wake up, you’ll have a sleep report explaining how deep of sleep you were in throughout the night . It tells you why and how many times you woke up and it’s sooo cool that it can do that . There’s so much more too it but the last I’ll mention is that, the App is not only an alarm clock, it will also pay ambient sounds to help you fall asleep . You used to have to keep your phone under your pillow for it to be an accurate report but now it can be accurate while just being on the dresser next to you . I completely recommended whole heartedly . It’s so well worth the small amount of money you pay to get it .
  • Almost perfect Apr 21, 2018

    By AppIesauce
    I’ve used Sleep Cycle for almost two years now and I can’t imagine my life without it. That being said, your recent Apple Watch update really needs some work. I’ve used the Apple Watch app for two days now. The first morning after, I noticed my battery was at 66% even though when I went to bed it was at 100%. Last night it was at 80%, and I woke up to my battery at 29% this morning. This is unacceptable. What is the app doing that is destroying my watch’s battery? It seems to me like my phone is still the device doing all the tracking, and the watch just reacts based on what my phone is sensing (i.e., my phone detects I’m snoring so my watch vibrates). The only thing the watch app does independently is measure my heart rate, and any of the other sleep tracking apps do that as well without this huge battery drain. I’ve been using two separate sleep tracking apps because no app did everything I wanted until you released your companion app for the watch. Until you fix the battery drain, I’ll have to go back to that, but I really look forward to any updates you have for this issue.
  • Really solid Jul 23, 2018

    By DCpdx
    The app is great, I’ve had it for years. I don’t have a ton of confidence in the accuracy of their claim for your sleep efficiency each night, but it’s probably not far off. What I love most is the snooze...it senses you tapping the phone to activate snooze! So you don’t have to grab your phone and try to find a brightly lit little button in a dark room when you don’t want to b opening your eyes—just physically tap the phone anywhere! In fact, I just tap my nightstand and that is enough to silence the alarm for the snooze! My one big complaint, however, is a change that was made a couple months ago. Now you have to unlock your phone to turn it off. It used to be that the screen would dark all night, but it wouldn’t be locked, so when the alarm goes off in the morning you just see the app with an off button. But now, the phone auto-locks, so in the morning when it’s time to turn off the alarm, all you see are all the notifications on the lock screen that came in all night. So you have to fight those to get to the unlock, where you can get to app to turn off alarm. Super annoying. It ruins an otherwise nice experience, and does so at the worst time: when you are waking up in the morning. (The developer said this due to a change in policy from Apple, and they’re working on a fix. Let’s hope one comes soon!)
  • May 7, 2021

    By Carlos Losa
    This app wakes you perfectly with ease plus tracks pretty well sleep cycles. The only thing I would like to have updated is deep sleep counter, to know how many hours of it I get. Keep it up.
  • May 7, 2021

    By laavaz
    The journal page isint that acurate but the smart alarm is great i was literally pulled out of my dream into the real world flawlessly.
  • May 6, 2021

    By Kathy Sharp
    Sleep Cycle has motivated me to get more sleep. I like it a lot. Very basic, not always right about when I'm sleeping, but not bad. It keeps good records. I like seeing my patterns, and it does that very well. If I could turn the alarm part completely off, I would give 5 stars. I don't want to be awakened over a time period. 5/6/21 I still can't turn the alarm off completely.
  • Bye bye Fitbit Jul 31, 2018

    By Axominster
    My biggest complaint is I wish the buttons to snooze and turn off weren’t so tiny on the watch. I love the silent alarm but when I’m awoken from sleep (even if it is light), I’m still so fuzzy that it’s easy to cut my alarm off and go back to sleep. Either make snooze a big button and you have to scroll down to reach off, or not allow cutting it off via the watch, just from the phone. The phone should be next to our beds anyway. If nothing else, just make this an option in the settings for those of us who sleep a lot harder. Otherwise, I love the app. I LOVE the silent alarms and snoozes. My wife and son love it, too. Now I don’t get them up before the sun rises and I can sneak out to work without waking them. The insights are pretty cool. I did turn off the recording, though. There’s no company I’d let record me sleep. Cool feature if you want it. When I first got my Apple Watch I was sad about the battery life and that I didn’t have my Fitbit to track my sleep. I love tracking my sleep so much that I was actually wanting my Fitbit back. This is so much better than the Fitbit. The silent alarms are pretty powerful, and the full screen gives you so many more options than a Fitbit ever could. This made me love my Apple Watch. Bye bye Fitbit.
  • nice app! May 15, 2020

    By Rowan..
    This is a pretty good app, I don’t regret downloading it. I don’t have the premium subscription, but it’s still good and everything works fine, it’s not like those apps where they give you one feature for free and make you pay for the rest. I’m not sure how effective the wake up window thing is... I often wake up at the very beginning or very end of the window, and I don’t really notice a difference in how I feel waking up using this vs a normal alarm. More often I just use the sleep tracking feature without the wake up window. My only other complaint is the alarm sounds. If I’m not already almost awake (I’ve noticed when I’m on a schedule, waking up at the same time everyday according to this app I sleep very lightly for like half an hour before) I can sleep right through it. Like, we all like nature sounds but they put me to sleep more than wake me up. And there’s no option for a normal alarm sound or some random jingle in the the Apple clock app. But other than that, it’s pretty great. The graphs are very nice, it tells you how much time you were actually asleep vs in bed, you can even look at a calendar and see your sleep quality over time which is really interesting. Would recommend!
  • Apr 27, 2021

    By Anton Roos
    Some recommendations... The snore tracker tracks airplanes that fly over and it has never tracked a snore of mine. It needs a go to bed push notification too. Other than that I love the app. I am not sure how accurate it is but it does grab a lot of battery if you don't have your phone plugged in.
  • Apr 30, 2021

    By Lewis Maull
    A good app that has useful features but you can't access the majority of the menu without paying.
  • This app is incredible Apr 2, 2019

    By Get it together BOSE!!!
    I am a morning person who does not like my sleep disturbed. I have always found alarms to be horrible and to make me grouchy. When I found this app I didn’t really believe it could find the best time to wake me, but it has....EVERY DAY!!! Everyday I am delightfully shocked when I hear the quiet alarm start to play, because it is the perfect time to wake up. I actually wake up smiling and thinking, “Yep, this is the right time to wake up”, and then start my day. The recent upgrade claims that you can use your speaker or play music through an external speaker. Unfortunately this is not true which is why I had to take away one star. I actually woke up late after following the apps suggestions and barely made it to work. The next day I set my regular alarm and super grouch was back when the alarm went off. I was actually mad that my alarm didn’t know the exact time to wake me as this app seemingly does. It would be a great addition to the apps greatness, to be able to listen to my music while I sleep; and wake up in the beautiful way this app wakes me up. Am I asking for too much? Because honestly, I will forgo the music to have this app in my life forever.
  • Great Design but Buggy Jun 20, 2020

    By ERC. Huang
    This sleep cycle app is one of the best ways to track your sleep schedule; the graphics are clean, the stats are comprehensive, and the interface is very user-friendly. I accidentally signed up for Premium, but so far it seems to justify its cost. However, the bugginess of this app is intolerable. I would think it was something wrong with my phone, but none of my other apps give me this trouble. First of all, as soon as you start the timer the screen auto-locks, meaning if you want to play music you have to go back in again and load it up. Second, I have often encountered issues where if I choose to open my phone again while the app is running, it will freeze on the sleep cycle app and black out immediately every time I turn on the phone, giving no option to pause audio, exit the app, or even restart my phone. This doesn’t always happen, but it does so enough that the mounting frustration and panic often makes it more difficult to sleep. Such an incident happened today, which prompted this review. It would be a huge relief to see the developers fix this issue.
  • May 6, 2021

    By Daniel Martinsen
    The app is fantastic, but it requires a lot of power and even though I charge my phone, it has 30% when I wakes up. It so also say that I am totally awake in the middle of the night when I sleep, so it's something weird.
  • May 6, 2021

    By Desf ʕっ•ᴥ•ʔっ
    It's making a huge difference in my sleeps now, never feel much better than ever with this app. Only thing that l don't liked so much was some features be behind paywalls. But at least the app is working with me.
  • Changes with Sleep Aid and Alarm Flaws Apr 8, 2018

    By DigitalDCH
    I generally like this app, but there are certain flaws that drive me crazy! One of them is that occasionally (1/75 nights at most I would guess) the alarm never goes off. My phone did not restart during the night, and the screen isn’t even off. Once I wake up and move my phone it will start going off, but nothing at all before that, which is incredibly annoying, and has now forced me to add another alarm to make sure that at least that one will go off if SleepCycle fails. The second issue is more of a minor annoyance, and although I don’t claim to know anything about app development, seems super fixable. The sleep aid option used to have an “all night” option, but now the longest you can have it on is 90 minutes. That’s not a huge problem at my dorm because I have a white noise machine, but whenever I go home or travel anywhere it’s super annoying because I either have to use a different app to produce white noise on my phone (which interferes with the microphone-based sleep tracking) or buy a white noise machine to travel with. It just seems like an issue that is so easily fixed, and such a no-brainer, because some people (myself included) will wake up in the middle of the night and not know why, only to realize that the noise turned off!
  • Apr 14, 2021

    By Dan
    After extensive use: it works. But... I would like some features introduced. Like continuing a session when you accidentally close it. Or to further define good or bad things you do. Because I do unhealthy things that define my schedule and leave me exhausted, but the app just assume it to be the most normal thing in the world. Maybe also allow for manual inputs to "teach" whatever algorithm you're using.
  • Apr 19, 2021

    By Joni Komulainen
    Have been using the free version for six months now. The data you get is limited on the free version but it tells me enough. The interface is very clear and I understand everything I see on the screen. This is my favorite app for sleep tracking so far. For some reason it has stopped syncing with Google Fit after March 14th and that bothers me
  • Heart rate at wake-up still unreliable Jan 11, 2018

    By ReverendDude
    For the most part, the app works pretty well. I was dismayed to see that when they updated the app to work with inductive charging positions (I.e., the phone is face up), there was no clear indication to not put the phone to sleep. I put it to sleep the first few nights because I wasn’t used to seeing the backlight on constantly (I have an 8 Plus) and awoke to see a slew of notifications saying I needed to wake my phone. While that’s not a huge deal, I found zero documentation. Also, the update for 8 Plus heart rate monitoring at wake up still rarely, if ever works. I will sit there for at least 90 seconds with my phone starting to heat my finger with the flash because it still won’t accurately pick my heart rate up. My display will go to sleep at least three times all the while, which is useful when I’m super groggy. Needless to say, I turned the heart rate feature off. It’s been smooth other than that. One remaining question is that when searching the help docs on the app, there’s no link to contact the developer. I’d never noticed that until I tried looking for ways to alleviate the problems noted above. That seems pretty “meh” for an app I have to pay for every year. I also pay for the Life Cycle app too.
  • Apr 25, 2021

    By RP 1
    Have been a fan of this app for a while, but since I got my new phone, I keep waking up with only a flat line of data recorded! I'm sure screen is left on the app, please look into this issue as I want to use the app again, but currently my alarms goes off at the end of the period every morning as no movement is detected
  • Trying this app again - still has issues Dec 25, 2020

    By Jaws2468
    I've tried this app once before (premium) and cancelled it because I felt that the tracking wasn't as accurate as I wanted. I am trying it again now because my sleep is not great and I hoped I could try tracking again for some insight. Right from the start, however, it failed to indicate that I had gotten out of bed. When i looked back it showed that I was awake only after I had turned off sleep (gave up falling back to sleep even though it is too early to be awake...). Also, every single snore recording is of my sleeping partner. He is a massive snorer, and I know its him and not me because I know how he snores and he has describes my snoring to me; they are very different. He is possibly suffering from sleep apnea and is scheduled for a sleep study soon. His snore is loud and distinctive. This happened before, and IMO, snore detection in this app is an absolute waste for anyone who does not sleep alone. It is just a microphone listening for snore sounds; it can't tell who is making them. Consider this before you try it and understand that this app has limitations. The gentle alarm feature is ok, but I more often than not wake up before it, so I am not sure how effective it is or might be for others.
  • Great until very recently Nov 25, 2020

    By BreeND
    In the last couple of months, something seems to have happened in the app. I’ve had multiple occasions where the alarm didn’t just not go off, the app didn’t even save the data from that night. (And yes, I had the app on and functioning when I went to bed. I’ve been using this app for 5+ years, this isn’t a ‘me’ issue. I didn’t turn it off in the middle of the night, either.) I contacted the developer, told them that I had just done all the latest updates to my phone and the app that had just come out, and that this was happening. The person who replied asked me if I had updated... to a version older than the newest version. 😑 I just told them that I was fully up to date. Determining that I wasn’t about to get a fast resolution but would be forced to go over days of these types of useless emails, I gave up on that. I’ve now had it happen on three occasions when I had something important scheduled in the morning. I’m lucky that I woke up on my own with just enough time to not miss the events. I’m going to have to find a new app. This one has done something that is now causing it to be unreliable.
  • Miss my sleep aid sound Nov 1, 2020

    By Ketmiri
    My husband and I have used this app for years. We even became premium users b/c we liked all the information it gave us. Then when the sleep aids came along, I throughly enjoyed one particular one and even trained my brain to set itself up for sleep when I listened to it laying in bed. Now that one particular sleep aid is gone. It was around for a long time now that u change them every week those of us that use a particular one feel cheated b/c u give us something like that one week then take it away the next. I would like the idea of giving the premium folks the option to DOWNLOAD their favorite sleep aids to their profile and have them there forever. Don’t take them away. Then the people who don’t pay, give them a demo of the sleep aids and when they find ones they like ask for a tiny dollar amount for them. This rating is 3/5 b/c my husband and I are long time users and a big fan of the information however u will not get the next star or even the next two til this becomes and option. I can no longer use that particular sleep aid to fall asleep now and I am very frustrated with that.
  • Really good Jun 3, 2020

    By mblling
    I like it’s softer alarm sounds to wake me up. It’s nice to know if you snore while sleeping, and most of the time the sleep cycle thing looks accurate. I find that it’s really off in when you fall asleep (saying I fell asleep immediately even though I stayed up longer) or in waking up (says I was sleeping soundly until the alarm but In reality I was just awake and relaxing) I’ve never really found it to follow any scientific knowledge to wake me up, it just gets me up either at the first minute of my window or the last minute, but that could possibly be due to the fact that I don’t have a bedside table and sleep with it on the windowsill next to my bed. There’s also, I haven’t figured out why, this thing it does sometimes where the alarm doesn’t go off at all, and it just gives you a little silent “good morning!” Notification if you set it up to wake at a certain time. Obviously this doesn’t wake me up. I’ve been lucky enough to just naturally wake up about 10 or so minutes after my alarm each time, but it’s dangerous if you wait until later to wake up. I also haven’t found a way to set it to just repeat on its own every night, you have to manually tell it you’re sleeping now and set an alarm every night. So, I would say this app is good if you want a gentle alarm to wake you up for things you want to do in the morning sometimes, but not good if you need it for important things you’re waking up for.
  • Was the Best, Now Sub Par. Dec 13, 2020

    By ElJefeTX
    I purchased Sleep Cycle several years ago and WAS a long time Sleep Cycle premium user. Sleep Cycle’s functionality has fallen behind competing apps that have emerged in recent years, many of which have a power nap option built in. The separate Power Nap app this developer sells was last updated FIVE YEARS ago, making it supper buggy and unusable (unless you’re still using an iPhone 3G). Also, the Apple Watch and iPhone apps work independently of one another. So, if you set an alarm on your phone, it will not sync with the Apple Watch app and vice-versa. Sleep Cycle WAS best in class for a long time, and Sleep Cycle still wins on UX IMO. If you read the developers responses to reviews they seem like a great group... the type of company you want to see beating the competition. Also, they deserve BIG props for allowing their early customers who purchased the premium app to maintain premium functionality after switching to a subscription model, excluding cloud backup. I actually added the subscription service, partly for cloud backup, but mostly because I was so impressed with the way they respected their early customer base when moving to subscription service. I would go back to Sleep Cycle if updated with the integration power nap functionality, Automatic sleep tracking, Apple Watch heart rate tracking, Apple Watch/iPhone apps sync, and other key functionalities now commonplace in the best sleep apps.
  • Should have read more reviews Mar 2, 2021

    By suzyQ3210
    I can probably count the number of reviews I have given in my life on one hand. It’s just not something I do. But as I’ve aged, I realize the importance of quality products and the need to celebrate them. Or, in this case, the need to express disappointment in something that was once great. I’ve had this app for about a month and up until the last few nights it has been working really well. So well, that after the first few days I felt I just had to upgrade to the premium version at $29/year (paying for apps is also something I rarely do). Zoom to this morning to me taking the time to write a review even though I’m already late for work, since I woke up for the third time in a row on my own without a peep from the app, the notification silently displaying, “good morning!” as if it actually did its job. No, you didn’t do your job, app; instead you only captured a portion of the night, or recorded my coughing/snoring but didn’t tell me how long it occurred. Of course my quality was subpar when you think I’ve only been asleep for 3 hours. I could deal with it messing up the recording/data a bit, but when I can no longer rely on the alarm clock *that I paid for*, what good is this app? This used to be such a great tool. I think that’s what makes all of this worse. Two stars for what it used to be. I guess I’ll be looking elsewhere.
  • Too many inconsistencies Jun 19, 2020

    By Writerinfact
    This is an edited review. The longer I have used Sleep Cycle, the more I question the validity of the so-called analyses of the free product. If I go to bed at 02:00, apparently fall asleep almost instantly, and sleep apparently without any waking incidents until the cat pats me awake at 07:09, there would appear to be an inconsistency when Sleep Cycle reports an 18-minute delay between going to bed and falling asleep, with an additional 35-minute loss of sleep that is not verified by the graph, which shows no wakeful high plateaus - not at the beginning, and not at any other period of the night, including the approach of morning awakening. In addition to these repeated inconsistencies - if I, a math-challenged English major, can see the math errors committed by this app, then there are programming issues. Computers, after all, do exactly what they’re told to do - there is the snoring issue. I won’t claim the cat did it. And since I do snore when not using the CPAP machine, I also listen to the sample recordings. They most often do not replay snoring, which has a distinctive pattern. Sleep Cycle records air hiss from the CPAP and calls it snoring. Remarkable. I am actively looking for a more accurate and effective sleep tracking app.
  • Premium version not worth $.99 Dec 7, 2020

    By Vicca Storm
    Firstly, it doesn’t record your quality of sleep, only your quantity. Some people work well on 6 hours of sleep and wake alert and refreshed. This app will then tell them that they are only getting 75% quality of sleep. Another person could sleep 10.5 hours and wake up groggy and lethargic (because that’s too much sleep), and they will get a quality score of 100%. Quantity and Quality are not interchangeable. Also, if you’re reading in bed it thinks your sleeping so the quantity isn’t exactly accurate either. Secondly, the app categorizes every car that passes by ones house as “snoring.” I paid for the app because I was surprised to find that I snored, but then I found out that I paid $30 to listen to recordings of cars. I still have yet to find a recording of actual snoring. Lovely that there is a label for “baby fussing”, but not one for “cars”. The app wasn’t made for child free city folk, I guess. So, if you’re thinking of paying the hefty price to listen to the recordings and you live anywhere with sound outside your house, save yourself some money and frustration and just don’t. The free app is fine, the premium version is simply not worth even $.99...
  • DISAPPOINTED...no longer supports Apple Watch Oct 4, 2019

    By Wanting it to work!!
    Sleep Cycle use to be the best sleep tracking app, hands down. I’ve been using it for years. The inclusion of the Apple Watch sleep and snore tracking was awesome and worked flawlessly. The alarm feature via vibration on the Apple Watch was very impressive and prevented waking up my spouse. That feature along with snore tracking were what set this app apart. Without Apple Watch integration sleep cycle is nothing more that a smart alarm clock, and not a very good one once you’ve used it with the Apple Watch. The watch helps to sense your movements and better predicts when its time to wake up based on your perfect wake up window. I’m very disappointed to see that the Apple Watch is no longer supported. I’m sure it’s due to Apple restrictions or Apple trying to purchase the technology, but removal of a key and health beneficial function after perfecting it over the years is a huge mistake. Knowing how critical sleep is and the impacts to a persons health it would be to everyone’s benefit to determine how to bring back this key support/integrated function. APPLE DON’T TAKE YEARS TO INTEGRATE INTO WATCH OS, or allow Apple watch support back into the Sleep Cycle Apple. Please!!!
  • Good concept, poor functionality Jul 2, 2019

    By Jamian13
    I wanted to love this app both for myself and my patients as a psychiatrist with a lot of patients with sleep problems. I was really excited reading about it online and hoping to use it to track my sleep to use with a CBTi program that requires knowing how long it takes to fall asleep and how much time one spends awake in the middle of the night but also avoiding looking at the clock. In theory this app would be perfect for that. The first couple of nights seemed to do just what I hoped. But after that I realized it wasn’t registering about half the times when I actually woke up and got out of bed. I tried taking the phone with me as suggested in the app help and it still didn’t register these wakeful episodes half the time. I also use meditative breathing techniques while trying to fall asleep and it seems to register that as sleep because there have been nights where I know it took longer to fall asleep than the app shows. Too bad. For myself I’ll probably invest in one of the ring-based sleep trackers but that will be more expensive than what most of my patients can afford so I’ll still be on the lookout for a reliable affordable sleep tracker.
  • High gloss outside, empty inside? Feb 20, 2021

    By on_surfaces
    Interested in sleeping better, and I love having data of all kinds to find patterns and analyze and learn. Was initially quite interested in this app to gain insight and record of my (not great) sleep habits so I can get better rest. Unfortunately I’m forced to concede that the app has NO IDEA what’s going on. My suspicions were first raised when I saw that waking to use the bathroom in the middle of the night and having trouble falling back asleep was not reflected AT ALL on my sleep record and it always shows me as “asleep” the entire time. And then, the final straw was having to get out of bed twice in one night for a fire alarm in the building, walking around with my phone and talking with a dozen people while alarms are blaring and fire trucks are arriving, finally going back to bed an hour later, laying awake for another hour—and guess what? The app tell me I was ASLEEP THE WHOLE TIME, despite recording the sounds of dozens of voices and alarms and a fire truck. If it doesn’t know that I’m awake at that point, then it’s a complete sham, and a shame. I want my money back. Do NOT count on this app to track your sleep.
  • Not At All Accurate So Why Buy Premium? Jun 1, 2020

    By SamsNorthernGirl
    Like I said above, the app is not at all accurate, so why should I pay for the premium version? I have used it for the last few weeks, placing it exactly as recommended, and not once has it been accurate as to when I fell asleep. Take last night for example: I started the app, placed the phone face down, and after saying good night to hubby, I turned off the table lamp. Seven minutes later, hubby had to get up so I turned the light on for him. While hubby was out of the room, I picked up the phone to stop/re-start the app. When I stopped it and went to the "journal", it showed that of the seven minutes I had been in bed, I'd been asleep for six of them. Duh, no, I was wide awake all seven minutes listening to the dog snoring in her crate. I didn't bother to re-start the app. This same issue has occurred almost every night that I've used the app. Many nights I lay awake for several minutes before deciding whether to watch Netflix or Prime on my iPad or to just get up for a while. And every morning the app says I was asleep within 5-7 minutes. I'm deleting the app.
  • Paid for Premium and nothing is working May 9, 2021

    By Hswvuv356
    I downloaded this last night (the free version) and it recorded my whole night’s sleep.. about 8 hours. It said I talked 7 times in my sleep and it recorded all of them but when I tried to play even 1, it would not let me and said I need to upgrade to Premium to listen. Actually, you need to upgrade to Premium to view literally ANYTHING on this app, so the free version is virtually useless. So, I upgraded and paid for premium and went back to listen to my recordings and it took me back to the “Upgrade to Premium” screen. There’s a section at the bottom where you can click “I have already paid for Premium Subscription” and i’ve tried clicking that but it just takes me back to the login, where I log myself in and then run into the same problem over and over and over again. I tried this about 43 times before giving up and canceling my subscription to premium bc it just does not work, you can’t listen to your recordings either way. I do not recommend. I spent 3.99 for nothing, so don’t waste your money.
  • Doesn’t do the job. Jul 6, 2018

    By Positively Annoyed
    After a month of premium (paid) service this ‘Sleep Cycle’ app isn’t working, and there isn’t any way to contact the app developers. I set the app to start recording my sleep and set down my device in the very specific way requested, with it plugged in even, and at some point during my sleep it turns off and records nothing. Last night it recorded 1.5 of the 8 hours I actually slept. I can’t edit to correct a specific sleep cycle. I can’t create records that have only basic information, like how many ours I slept. I have many night that have gone unrecorded and that is the information that goes into their stats. Stats based on incorrect information are useless! So what exactly does ‘premium’ service get me? Nothing. Who cares if I have bad and incomplete information backed up? All the other stats I can easily look up on my own, for free. Don’t buy the premium service. It is a complete waste of money. I also tried ‘Life Cycle’. It doesn’t track well. You have to fill in a lot of information and that is pointless when the map location is incorrect and, again, the app doesn’t allow you to edit or correct their mistakes. Incorrect information is useless. Neither app is worth paying for. Response to app developer response: why would you think I hadn’t already tried the simple ideas? I did that. I rebooted my device as well. None of the easy-fix options have helped. If they had a review like this would just be petty instead of helpful to others.
  • May 5, 2021

    By Fabio Colturri
    The app does not work and I am denied a refund. - the alarm does not ring - the recording of sleep activity works every once in a while, most of the times results in a flat line or shows a 5 minutes sleep even if I keep it active for the whole night. Do not buy this.
  • Used to be great, but went to garbage Oct 25, 2019

    By Olushka
    I have had this app since 2011. I loved it and recommend it to everyone I knew. Regretfully, starting with the last major update, it has gradually undone all the things I fell in love with. 1. User Interface. It’s been about a year since it was changed, and I still cannot get used to the new clunky cartoonish UI, which apparently was designed by a toddler. The sophisticated slick and polished user interface, no more. I figured OK, it’s just a form, let’s focus on substance. Well... 2. The reliability of the analysis and features went down the drain. The app shows me as being asleep, when I am not, and vice versa. In fact it will show things like snoring and being awake at the same time. Really? 3. Woke me up randomly at 3:30 am instead of 6:30. I kept snoozing it, wondering why I just can’t wake up, to finally open my eyes and see 3:45 on my alarm. HOW? I know I did not make an error. The alarm still shows as being set for 6:30. The only thing I can think of is that I came home from a location with a different time zone (3 hours early) that day. Was this the cause of screwed up internal sleep cycle clock? But cmon. When I set the alarm the night before, the current and the wake times were shown correctly. Needless to say, I could not go to sleep after, and was off my game the entire day. Ironic, that the app you get to help your sleep, ruins it for you. I am uninstalling and moving on to other apps. Done with this nonsense.
  • So disappointed Dec 22, 2018

    By Asdfかう
    I’ve had this app for years and relied on it to wake me up on time and give me insights on my sleep quality with little to no problem. And it did just that, until recently. I set the app’s alarm one night, as usual, and went to bed. When I woke, I realized that I overslept when this app alarm was supposed to wake me. I briefly considered the possibility that I set the wrong time for my alarm. So I open the app and what I found bewildered me. Not only did it seem like the app wasn’t tracking my sleep at all the previous night, but ALL of my sleep data was gone. Erased. Years of insights wiped from memory. But I thought, “this app is still a good alarm to wake up to” so I used it to set an alarm for the next day. I fall asleep that night and wake up. The sun is shining through my window. That’s my first clue that something is off. I set my alarm for 5 am, when the sky is still dark. So obviously, I overslept again. I open the app, trying to find some acceptable reason for me not waking up to it, hoping that I was doing something wrong and that this app that I’ve trusted for years wasn’t suddenly malfunctioning. Unfortunately, it was the app. Once again, it didn’t seem to be analyzing my sleep patterns and no insights from my recent rest appeared. To top it off, this was the second day in a row that I woke up late for work. This app has disappointed me in so many ways. The only positive thing is that I didn’t spend any money on this. Do not download.
  • May 7, 2021

    By J Viljoen
    I got up 4 times (twice for the dog once for myself and once for my kid) last night and was awake in bed at least 5 other times too to tuck my son in over and over (we sleep in the same bed). Also if I turn in bed I'm aware of everything so I definitely wake up during turns too. The app says I was awake ONCE🤷‍♀️🤷‍♀️🤷‍♀️ Seriously inaccurate!👎
  • It is nice when it works but.... Jul 12, 2020

    By sunriseon65
    Tried this out for a few weeks and tried to primarily use the Apple Watch instead of the phone to see how the watch app works. First, there is no option to change between hours and minutes so you must twist the crown for an unnecessary amount of time in order to change your alarm from 6 AM to 11AM. Second, you cannot use it WITHOUT the alarm which bothersome when you would rather just track the sleep and not use an alarm. Finally, it does not sync to Apple health consistently if using only the Apple Watch. I never slept to the alarm that I set, which was usually set to 11 AM so I would switch it off before the alarm hit. Sometimes it would sync to Apple health but most nights it would not. I would even get an alert on my phone saying it did sync to Apple health then I would open the app and find that there was no information for that night. Kind of a big strike against a sleep tracker for the watch if it cannot stand alone from its iPhone app when it advertises as such. The app for the phone works fine by itself. I didn’t really see a noticeable difference in tracking when using the phone app versus the watch app, however, with all the issues I mentioned above, I am not sure how this ended up an “editor’s choice” when there are some obvious problems with both the design and operation of the watch app.
  • Apr 12, 2021

    By Tyler Russell
    Paid version, many years, iOS & Android: Finally giving up on this. Around when it began pushing audio rather than accelerometer (movement) tracking (2? 3? years ago), it started degrading. I don't need extra 'features' like white noise, stories etc. I want a sleep tracker that works. Tracking (audio) highly inaccurate now, & alarm 'tap to snooze' works half the time, so I wake up angry... Screen lock disables alarm shut off AND app shutdown (Moto G5 Play). Used to be 5 stars, now it's garbage.
  • Crashes Jun 20, 2019

    By M.E. Hudson
    I’ve had this one for a while now and enjoyed it up until a year ago. The first problem was choosing a song to wake me. I had chosen one song and never went back in to change it because it helped me wake up. The app all of sudden started to choose random songs on random days instead. And no, the selection was never set on random song. It just decided to do that ok its own. Finally, I’ve had random days where I try to wake up for a workout only to miss it. I always see a notification that my alarm went off. However this morning I did the research and don’t see any analysis. Which means I set it and the app crashed in the middle of the night, never went off, never analyzed sleep, and yet still gave me a notification in my Notification Center that it went off. I see a developer response to fully charge my phone before bed and use the app unplugged. I’ll be honest, I won’t be trying that because I don’t want my phone to die before morning and the app fail because of that too. And even if it did make it, now I have a barely charged phone in the morning. Just not worth the hassle. I bought this app from the beginning. Back when it was a simple 0.99 app that worked. All the changes and subscription stuff is when everything started to malfunction.
  • Used to be better Sep 7, 2019

    By MakingRobots
    I don’t know what has happened to this app recently, but it has really started to not work well. I have been having issues with the app crashing regularly, if I change the microphone location (i.e. turn on noise-cancelling headphones due to rude and loud neighbours) the app stops recognising the microphone and stops working, and over the last week there have been areas of time that the app is claiming I am awake when I know there is no possible way I was awake in any form during the time it is claiming. The heartbeat monitor is hit and miss a lot. The “smart” wake up is pretty annoying when you have it set up for waking up over 30 minutes and no alarms start until 2 minutes before you have to get up - which is a pretty crappy transition with their full volume alarms suddenly blaring off and no actual gradual transition. I have used this app for years, but am getting ready to ditch it with all of the garbage it has been doing lately. Also sent an email to the company about the Bluetooth issue and they thought it was good enough that I found the work-around of having to always hookup my noise-cancelling headphones, whether I wanted to wear them or not. Really disappointing.
  • Volume/sound issues May 11, 2019

    By Len9917
    I used to use this app all the time a few years ago and really enjoyed it. I can’t remember why I stopped, but I decided to start back up again recently. I haven’t been using it that long yet but I’m disappointed that they don’t have more wake up sounds for non-premium users (although I read a review from a premium user that said the premium sounds sounded very cheap which is sad because $29/year for premium is pretty pricey). Anyway I can get over that issue; my main concern is that no matter what the volume is set to on the app, the alarm always starts at half of full volume of my phone. Whenever I use my regular alarm it’s always on the lowest volume setting and I’m sensitive to noise so I really don’t like it loud to begin with, plus it wakes my partner up because it’s so loud. Isn’t one of the main points of this to wake you up gently by starting at a lower volume and gradually increasing if you don’t turn it off? I never had an issue with this when I used it before and I’ve adjusted the volume on the app (and on my phone) to the lowest setting, but it still starts out very loud which is both very frustrating and disappointing.

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