Sleep Cycle alarm clock Health & Fitness App Review (iOS, $0.99)


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Seller: Northcube AB

- Fixed a bug causing flat sleep graphs for some users.
- A few fixes for heart rate and activity long term graphs.
- A fix for time zone error in the long term graphs.
- A fix for silent notifications: Activate AirPlay support under Settings/Advanced and keep Sleep Cycle in the foreground without locking your phone during the night.


News in Sleep Cycle 4.4:

Do you own an iPhone 5s? Sleep Cycle will automatically measure your daily physical activity and calculate how it affects your Sleep quality. Includes long term graphs over your daily steps.

Measure your resting heart rate (RHR) every morning using the camera and flash in your device. The morning heart rate can be used to avoid overtraining, track the results of your basic training and overall health (activate under Settings, iOS6 and above).

Sleep Cycle automatically adapts your graphs to the local time zone. Perfect if you travel a lot (will not be applied to your old nights).

- AirPlay support is back, let the alarm sound in your external speakers (activate under Settings/Advanced).
- Major update to SleepSecure for backing up your entire database or transferring your database to a new device
- Graphs slightly redesigned and a new app icon without gradient
- Several other design and stability improvements

Customer Ratings

Current Version:
1561 Ratings
All Versions:
63025 Ratings
Health & FitnessPaidTopBestIOS


Waking up made easy.

An intelligent alarm clock that analyzes your sleep and wakes you in the lightest sleep phase – the natural way to wake up feeling rested and relaxed.

Sleep Cycle helps millions of people to wake up rested!

Featured in: CNN, Wired, The Guardian, The Wall Street Journal, BBC, The New York Times and many more.

#1 Top Paid app in Japan
#1 Top Paid app in Germany
#1 Top Paid app in France
#1 Top Paid app in Russia
#1 Top Paid app in Netherlands
#1 Top Paid app in Taiwan
#1 Top Paid app in South Korea
#1 Top Paid app in Sweden
#1 Top Paid app in Norway
...and many more.

"It just works. Period. It does exactly what it advertises which is absolutely amazing."
-- 5/5 stars on

Sleep cycle is continuously rated as the best smart alarm clock, Sleep Cycle is now the worlds most used intelligent alarm clock.


* Sleep Cycle monitors your movement during sleep using the extremely sensitive accelerometer in your iPhone.

* Sleep Cycle then finds the optimal time to wake you up during a 30 minute window that ends at your set alarm time.

* Look at the screenshots for recommended iPhone placement.


As you sleep you go through different phases, ranging from deep sleep to light sleep. The phase you are in when your alarm goes off is critical for how tired you will feel when you wake up.

Since you move differently in bed during the different phases, Sleep Cycle can use the accelerometer in your iPhone to monitor your movement and determine which sleep phase you are in.

Sleep Cycle wakes you when you are in your lightest sleep phase.

Sleep Cycle was developed using proven sleep science and years of research and development.



√ Waking up made easy! Sleep Cycle analyzes your sleep and wakes you in your lightest sleep phase.

√ Detailed sleep statistics and sleep graphs for every night.

√ 15 carefully selected, high quality, alarm melodies.

√ Use iPod music as wake up sound

√ Snooze by shaking or tapping the phone lightly.

√ Customizable wake up window. From instant (regular alarm clock) up to 90 minutes.

√ Background mode - set your alarm and exit Sleep Cycle - sleep analysis will continue in the background

√ Sleep aid - helps you fall asleep. The intelligent mode detects when you fall asleep and automatically fades the sleep aid sound.

√ Support for the M7 co-processor - measure your daily physical activity and calculate how it affects your Sleep quality

√ Heart rate monitor - measure your resting heart rate (RHR) every morning using the camera and flash in your device.

√ Sleep notes - see how events such as drinking coffee, eating too much or having a stressful day affect your sleep quality

√ Long term graphs - track sleep quality over time, see which days of the week you sleep best and much more

√ Export sleep data to Excel for detailed analysis


Ability to charge your phone by the bed
Ability to place your iPhone according to the instructions (see screenshots)

Customer Reviews

  • I loooove this app!!

    by Saboody

    I love the way it wakes me up and puts me to sleep with a sleep aid noise that is so soothing and that it tracks my sleep pattern and really does wake me up at my lightest sleep! The waking up part is my favorite by far! Thank you Sleep Cycle!!

  • Amazing

    by Kennipohoppy

    I have only used it for about 2 nights. But every time so far I have waken up I feel relaxed and more awake than usual. This is the best alarm out there. And knowing how I sleep every night, that's a great idea and it's fun to know. I tested out to apps like this and this one for surely won. Because one of my favorite features are the snooze. You can just touch your phone to turn on snooze. But maybe you guys could add a recorder. And have it record your sleep at some moments. Because the data now doesn't help me. But hearing myself sleep would be fun and maybe useful. And maybe add weather to your morning, and remainders I could set. I would rather set them on the app then the other one.

  • Works as advertised!

    by FlyingDevil11

    Though they want an outrageous amount of money for their sleep secure feature (which seems useless to me so no need to buy it) everything about this app has worked as it says. Though I can't speak of it's accuracy, it seems to be generally correct. Also, I have not tried it on one of the mattresses where you can jump on it and not spill a wine glass... Then again if you have a Serta mattress you will need more than this alarm to crawl out of the covers.

  • Hooked

    by MikeyMaxx

    Just as good as advertised--sometimes I get annoyed that the alarm is going off before I need to be up, but I am always more refreshed as a result.

  • Works as advertised!

    by Baby cdhfudib

    Great features, I use every night I can! Having a visual of how well you're sleeping is great but my favorite part by far is that you're woken up in your lightest sleep. Well worth the price!

  • Sleeping like an angel

    by BeaniePhoto

    I love that this app offers (if nothing else) very gentle alarm options. But further than just the alarms, the sleep tracker is great - it wakes me up gently and slowly over time. Although I hit the snooze, after my specified wake-up time, I'm not allowed to which means without checking or trying to count, I know I'll be up at the time I need to be up. The one thing that would be great (my only reason for not putting 5 stars) is a nap element to the app so that, based on your usual sleep cycle, patterns and tendencies, it would be able to tell you what your optimum nap length would be and that it would be recorded as a nap and you could track naps as well as nights, separate. For now it recognizes that the short sleep period might mean a nap, but it still says that that nap was the worst night's sleep I had, the lowest sleep quality etc. I feel I should be able to define it as a nap and then it will tell me how long I can nap for.

  • Informational about your sleep habits!

    by Milla 129

    Besides waking up less tired, it is really cool to see your sleep chart and the quality of sleep you get each night and on average.

  • Great app

    by Grant274

    This app, though I wouldn't trust it for scientific research, is quite helpful for me to be able to track my sleeping patterns. And it's just a lot of fun too!

  • Cheap way to monitor sleep

    by -ET3

    I try to use sleep cycle every night. It helps me to identify my sleep patterns using the data collected and my sleep notes. Also, the sleep aid helps me fall asleep quicker

  • Great Alarm App

    by Miro0161

    This app wakes me up at around the perfect time. It's great!

  • Solid app

    by ldickin

    Easy to use, very reliable and consistent. Isn't a mind reader so don't expect it to be. But it is the smart alarm clock that it claims to be.

  • Works

    by Cakes 331


  • I like it

    by Aaron W

    It's a reliable alarm clock and interesting to see all the data it provides. I take a lot of it with a grain of salt though, I'm not sure how accurate it can be.

  • Great Sleep App

    by Ol' School user

    My personal trainer introduced this to me. It has been wonderful having something more concrete data to share with my sleep doc. I wished it had an option to add customized notes. I would like to record cpap or appliance use to know which allows me the best sleep. Other than that, I've been quite pleased and amazed with this technology! It was the best 99 cents I've ever spent!!

  • Best App!

    by C. Solitaire

    This is a great app! It actually helps me wake up in the morning and usually I'm not as tired as I usually would be with the "wake up phase!"

  • Love

    by Kaday383

    Love this app! Great white noise!

  • Truth Tellers Found Here

    by Aunk123

    Outstanding inovation, does exactly what is says. Easy to use and I feel more refreshed and know more about my sleep then ever before. My mission is Cultural Health and Physical Health for 21st Century effectiveness. On the physical side we must watch our food intake, how much we burn and how we repair our body when we sleep. On my Iphone, I use Grocery I.Q. For food, Ifittness for the Gym and now Sleep Cycle to manage my sleep. Way back at V3.0 I made a number if recommendations from a temp button for naps to many graph recommendation beyond the one basic sleep graph we had back in the day. This is 10/2013 and they have implemented all that I asked for and more. I am writing entitled LifeRcise I will be sure to recommend Sleep Cycle as my goto Smart Alarm and sleep analysis tool. They remain the gold standard 5 stars Great app tnx

  • Get a good night's sleep- finally!

    by Ccucc

    This app- when used properly- works incredibly. The idea is that it wakes you up while you're not in a deep sleep. As time goes on and you wake up rested, you'll get an increasingly better sleep. I literally turn this on every single night and put it on my bed. It is my go-to alarm clock. 100% worth a try!

  • Great app for sleep feedback

    by Joshrhart

    I've been using this app to monitor my sleep and understand why I feel good or bad when I wake up. It's useful to have the information when I wake up, but seeing long term patterns in the data is where it becomes a really transformative tool.

  • alarm clock

    by oscar han

    best alarm app ever

  • More data, better living!

    by Adam The MechE

    Since getting this app, I've noticed a marked increase in my work time in the mornings, as I feel less compelled to snooze my alarm. I have also noticed that my sleeping patten is both regular and concerning. I now have proof that I haven't been sleeping very long at all, and as a result I have started aiming to finish my activities earlier in the evening. The most recent update was amazing and nullified almost all of my complaints with the app. The only thing that could make it better is better song-alarm options (randomized, play more than one, play on loop) or if it continued to track movement after the alarm and until I confirm that I'm awake, for those mornings when I snooze for half an hour.

  • It works

    by Knicks 123

    This amazing work of technology gives you not only a good morning it gives you cool graphs about your night

  • Very good app

    by Mykeee

    Using it everyday. Helps me with my sleep patterns.

  • Cool App

    by Is this supposed to be my nickname or my nickname for the band?

    Nice way to track the quality of sleep.

  • Great App

    by Russell_Fox

    It won't fix any chronic sleep issues. But it will let you know how many hours you get and how certain things affect your 90min sleep cycle. It really works.

  • Only one thing

    by Paulie kaboom

    There is only one thing I would add for the next update. For the sleep aid sounds a crackling fire would be perfect. Everything else about the app is perfect. I used it for about a year now and I love it. I don't use any other alarm clock. It's perfect.

  • The best part of waking up in the morning

    by BroccoliMan1013

    Couldn't live without it!

  • Great app!

    by Hip Hop Head for real

    It has made me more conscious of my sleep habits!

  • Quite happy

    by Mer Funk

    Excellent app. The statistics feel accurate, as from the first morning this app woke me up I could tell a huge difference in my energy and got up within 10 min. It has always taken me over an hour to actually wake up/get up, and according to the graphs, I have a longer sleep cycle, about 2 hours, so now I know how to time my sleep schedule better. The intelligent snooze works wonders as well.

  • Good job!

    by Derpmir

    When I first downloaded the app it (and many other apps I dare say) did not work properly on my iPod Touch 5g. Luckily I resolved that in time with my local Genius at the bar and CAN I JUST TELL YOU THIS APP WORKS BEAUTIFULLY. ALTHOUGH ITS DATA ISN'T SCIENTIFICALLY BASED ITS ALARMS ARE SO SOOTHING. I HIGHLY RECOMMEND GYMNOPEDIE. BEAUTIFUL TUNE. GREAT APP. GOOD JOB. YEA

  • Love it

    by Lainey133

    Who knows how accurate the waves are, but I wake up more refreshed, feeling more awake, and it's definitely interesting! I need all the help I can get with shifts at 7am every morning. It is well worth the cost.

  • It's great but raw data is now raw data

    by EnigMoiD

    It's great. Simple to use and seems like it picks up interesting stuff. I'd like to do more detailed analysis but the "export raw data" option doesn't actually export all the data, which is disappointing. Might be good for my sleep, I don't know. Now stop asking me to review you!

  • This App Has Changed Sleep For Me

    by Luke Ivie

    The days of setting a dozen alarms just to get myself up are long gone. This app wakes you up gradually so you don't feel as tired when you wake up. Because it tracks your cycles it knows just when to wake you up. I was skeptical at first, but it actually works great. I love the way it tracks statistics and gives you detailed reports on your sleeping too. Overall, it's made my life easier and helped me get much better sleep. Very impressed. One thing though, the heart BPM tracker could be improved greatly, it rarely works correctly.

  • tru

    by baileywilson

    five stars well earned. i've been using this app for almost two years. screw alarm clocks, this app is the best thing ever. goodnight.

  • I'm would give it five stars but

    by Cbsgirl

    I'm in love with this app. It's cool to see how you sleep and What time you sleep the best. Worth the money. But it killed my battery my phone start dying at 87%.

  • I use this app every night

    by cujonutti

    Extremely valuable app for anyone who values a good nights sleep and an energized, productive day

  • Great App

    by A burning censer

    It helps you keep track of your sleeping pattern. The soft alarm is excellent.

  • Great app

    by Hxctomhxc

    Lots of great data and charts. The wake up alarms work very well and this app works great for me. There are a lot of options and settings to be able to create a set up that works well for you. I definitely recommend this app!

  • Great alarm!

    by Chinchillita

    I've been using sleep cycle for nearly 2 years. I hate loud annoying alarms that scare you first thing in the morning. But sleep cycle has the best alarm that allows you to gradually wake up and has different snooze settings. I have no idea how accurate the information is in this app but it's interesting to look at anyway.

  • Great app

    by Tdude99

    This is an amazing app but I would like to be able to use my own music in the sleep aid, I fall asleep better to music than other sounds

  • Great App

    by Kat PU

    It has helped me so much to evaluate my sleep quality and wake up more gently!

  • This app is great and totally worth it

    by JoeG003

    The app is great alarm system is perfect never have an issue getting up in the morning and the self snooze system it has is brilliant. The graphs are a real cool feature and I feel that they actually work when it says my sleep was 90% I actually feel good when I wake up, but when I wake up and I feel like crap or still tired as if I was tossing an turning all night I checked the chart and it has my sleep rate around 48 to 63 which is crazy bc that's about how I feel lol. App is great and I would recommend it to anyone!

  • Spot On

    by Hoodrich1277

    This App is spot on when it comes to tracking sleep. I will not be able to go back to any sort of normal alarm system. I only feel good when being woken by this alarm.

  • Great info

    by JrBhm

    I've used the app for about a year now and have been very pleased with the information I've learned. I now know that I have sleep apnea.

  • Great app.

    by Dhbtlr

    Super lil' guy. Not exactly useful, but gratifying.

  • Great alarm

    by Sisew

    Good design and actually helps in waking you up at the correct time

  • awesome!!!

    by darka1205

    it works so well... hated waking up and the standard alarm on the iphone. and now its just so easy.

  • wow

    by malorihite

    much good, very sleep

  • Great app!

    by kurth

    It's very easy to use and has lots of interesting charts. It seems accurate because I check the time when I wake up at night.

  • Excelent!

    by Alexmacario

    Muy util aplicacion

  • Great app!

    by Mal_whitman

    By far the best sleep app I've tried.

  • For lone sleepers, it's perfect in every way

    by Kolleen11

    Used it for almost a year now and can't imagine life without it, no more impossible, groggy mornings anymore, ever O.O Plus it's really helpful to know how you slept, and have a log of how much sleep you've been getting. You can't use it if you have a pet sleeping with you though, and I don't know about other people who share a bed, it may not work right for you either (works by detecting movement; your partner/pet may be ready to wake up but you're still in REM), but for a busy, sleep-deprived high school student such as myself, with pets sleeping on other people's beds, this app is a godsend.

  • Must have!

    by BaileeRyam

    This app has turned into a must have for my daily morning routine! It wakes me up at the perfect time! I absolutely love it!

  • Surprisingly effective

    by Thorax321

    I never thought this app would actually work but the first time I tried it I woke up feeling great. I thought it was going to be pretty gimmicky but it it works and I'm pleasantly surprised.

  • Add "drank alcohol" in notes

    by Queenvictoria12345

    There should be an option to check if you drank that evening

  • Wakes me up at the perfect time

    by rldutrow

    Before I started using this app I would always get woken up in dead sleep and feel like I was under anesthesia when my alarm went off. This app really does wake you up in the lightest sleep. I've been using it for about a month now and it always wakes me up at the perfect time. The tracking and graphs it shows you is great as well. With the apps help, I found that taking Ambien seriously reduced my sleep quality! I haven't been taking that anymore, not only for that reason, but it did contribute to the decision. Great intuitive app, definitely one of the best I've bought for my iPhone.

  • Me

    by Teacher kk

    This is my favorite app on my iPhone. It absolutely get used every day. My sleep patterns have improved since using this application. I love the way that it demonstrates sleep patterns over the past three months using very easy to read charts. If you are concerned about your own sleep patterns and want to improve them, download this app

  • Helpful app, works well

    by Jupe2

    This app is worth the money if you'd like some info on your sleeping habits. I find that I am sleeping better as a result of using sleepcycle simply because I am more focused on the quality of my sleep in the evening. Charts appear to be accurate.

  • Like to review my nights sleep

    by Guzzi231

    Worthwhile to make changes to your lifestyle to effect your sleep quality

  • This app is soooo awesome!

    by rdeleon774

    Love this app! You need to buy this for real. Helps in life a lot.

  • Taking back control of my sleep.

    by photodna

    This app works very well. I have struggled for years with morning grogginess and an uncanny ability to sleep through alarm clocks no matter the circumstance. With Sleep Cycle I feel like I've taken back control of this part of my life with the ability to get up when I choose and start my day off right. The other data that is provided is quite interesting as well and helps you account for your sleep quality in ways only someone with OCD would have been able to accomplish previously. I would pay 10 times as much for this app and still consider it a bargain.

  • Pretty cool!

    by Jaqj

    I like the alarm sounds and you get very aware of what helps you sleep better at night.

  • Good!

    by Chfifnrigi

    Use it everyday!

  • Amazing!

    by Hridd

    Awesome app!!! Perfect in every aspect!

  • Great app

    by Kashyap1988

    Very well done app which has the best alarm n method to wake me up... Only thing I would suggest is for us to add time that we have slept over time as a day's sleep

  • Absolutely fantastic.

    by Severely Dissapointed

    Brilliant. Use it every day. One of the best apps I've ever downloaded

  • Great life hack app

    by Alqowkshrnf1920/

    I started using this app to feel better when I woke up in the morning. Now I use it to make sleeping more efficient!

  • Amazing

    by Miab2014

    By far the best app-purchase I've made. It does exactly what it advertises!

  • Psych professor recommended

    by Harktheharold

    Id isn't know this existed until my UT psychology professor told my class it was real and actually works. Even after that point I was slightly skeptical, but it really did make it easier for me to wake up! And I was more awake throughout the day!

  • Simply brilliant

    by Ngiambro

    Has helped beyond belief! I always feel like a million bucks every morning.

  • Perfection

    by Mad Pyro

    I've been using this app for quite some time and while I still don't entirely know how it works, I can say with confidence that IT DOES. It's a tremendous improvement over the alarm clock app that comes on the iPhone. Get this app!

  • Love it

    by ☮Dancer911☮

    My personal experience with this app has been very positive. I haven't really found any problems with it or anything that I wish it could improve on. The only thing I would say is that it isn't completely useful-- for me personally-- but mostly just for fun, which is completely fine for me and the whole reason I bought it. I have loved my experience and use it every night. It's a fun way for me to go to bed and wake up and yet I get some data as well. Since I don't have sleeping problems, it's dumb for me to have. But as I said: SOO FUN and interesting! Love it! And I totally recommend it!

  • Great app

    by EastXmoXbeast

    Does what it's suppose to. Eases you into waking up. Love the ocean sounds.

  • Clever, effective

    by Benician

    I've used the app for most of the past year. Whether you want to gauge and track your sleep or just have an effective alarm to awaken you at the right moment, in the right way, this is a terrific app.

  • Great

    by Jeremy! ;)

    Really great alarm/feedback system. Definite positive impact on life quality. UI can be clunky.

  • Fantastic!

    by LMLMF

    I hate being jarred out of sleep by an annoying alarm sound. It contributes to a really rotten morning and a terrible disposition. This app does a beautiful job of gently easing you out of sleep and has a great array of non-irritating sounds to that with. Excellent app!

  • LOVE this app

    by SarahFowler

    I've been using it every night for several years. The new features they add are great. Literally no complaints.

  • Love it

    by The coolyest known to man

    It intrigues when I can use an app to see how I sleep at night thank you for this this app works great I am completely satisfied with this the only thing is (but not holding back from 5 stars due to the fact I won't be upset if it doesn't change) the ability to edit sleep notes after you sleep just in case you were just too groggy to put it in and also the ability to not set an alarm at all just a switch to set the alarm to off I'm not sure if that's already in it but other then amazing accurate and with great features. Get it it's worth it

  • great app

    by Emilyanneweber

    only thing that has been able to wake me up in years. I do often turn it off after a half hour of slapping my phone to snooze it, so I wish there was a way to make the alarm go off again but all in all, fun and interesting app. makes me wonder if I actually do always sleep so well, though!

  • Great app!

    by terrilee_nc

    This is a winner all the way around. Well-designed, with a user guide that includes lots of helpful info. And it works! - quite well for something you don't wear. The wake-up music is beautiful & I like the sleep-aid sounds in the update. I highly recommend it!

  • Nice tool

    by jbdbackfan

    This is great for those who may have trouble staying asleep all night and would better like to analyze when they awake, etc. While this app isn't perfect it truly adds insight and data considering it all comes from your cell phone. Has great options for awaking you along with nice melodic tones.

  • Still love it

    by Neonsighs

    I've been using this app for over two years and still love it. Sorry for taking so long to review your wonderful app devs!

  • Great app!

    by Ccccccccccccd


  • Amazing

    by Marisa Cika

    It's seriously the best app that I have ever had.

  • No wonder I'm so tired

    by SanFan99

    Great app, though I'm not sure how accurate it can be, simply relying on the accelerometer to measure how deeply you're sleeping. Nonetheless, it does reveal that I flip and flop like a salmon.

  • Best alarm clock

    by Adwells314

    Not only is the app interesting, it wakes me up in such a perfect way!

  • Great!

    by Sikwititcuz

    Love the graphs and rem info. Can really see my sleeping patterns easily, which helps me schedule My Sleeping better

  • A necessity

    by Saiahbskskanab

    Having dealt with sleep problems for most of my life, waking up is also a significant issue for me. I always turn off my alarm and fall back asleep, but the intelligent snooze really helps with that. I seem to wake up more gently and in a better mood than with a traditional alarm clock. I use this app almost every night, and the information that it stores has really helped me to improve my sleep habits. Can't say enough good things, if you have sleep problems this is worth the money!

  • I Like It! - Following Up and I still Like It!

    by Reality_Bytes

    Update: 2/5/2014 I still love this app, but it remains at 3 stars as it needs a way to track naps. If I sleep for an hour it wrecks my overall % so I tend to delete them which isn't fair as naps should count. The new features are okay. Not sure yet what the intentions are for the long run yet and the heart beat measure can be cumbersome. Steps are not always accurate and I need a reminder to take the phone with me when I walk around otherwise it's pretty useless. Great I guess for an exercise session but I'm curious about everyday cumulative steps. But so far so good. This is my go to app, but will stray soon if you don't do something about tracking naps. Newer apps are incorporating them. Would also like to record at a specific interval or intervals during the night. Initial Review: This has replaced my old buzz type alarm clock. I like the fact that it begins to wake you up before the set time for a built in snooze if you need it. All you have to do is leave it alone and go back to sleep in about 9-10 minutes the alarm will sound again. So there is no need for a snooze button like one user described. The only con I have is that the AM/PM is too sensitive on the wheel and moves even if you are trying to set the hour. How about a simple flat button or check box interface to set the AM or PM and remove it from the wheel. Otherwise it's a great app and does what it says it will do. I would also like to see some data on my sleep patterns so that I could know just how much sleep I need to feel refreshed. If you add the data, please let us be able to accumulate data over long periods of time and export it to viable formats. Don't forget back-up options. Update 9/21/09 - I installed the new music loops and they are great, but I think we need an update or instructions regarding how to make the alarm recognize them. I set a new song, time and start time but the alarm wnet off the next morning to the old tune. Thought maybe I'd done something wrong, so I tried a test and the same thing happened. The next night I changed to one of the old loops and it switched without a problem, so it seems only the new tunes won't play. I have not yet tried recalabrating. Hoping that I won't have to so that one day if you do upgrade I can back up that data for sleep history. But if I have it....I recently sent an email, but have not yet received a response. Most tech support staff respond quickly to customer software issues, so this is disheartning considering that I'm a huge supporter of the application. For now I have to lower this from a 4 star to a 3 star until this is resolved. Customer service speaks volumes. A good product doesn't just simply stand alone. Note to those of you that continue to believe w/o reason that your screen stays on all night, newsflash it doesn't. The app does, because it's an alarm clock. But there is a very nice sleep screen mode and when you click yoour home button you can see the details of the clock, w/o turning the app off. To turn it completely off hit your home button when the app is in full display mode. I have an iphone 3Gs and am using this app with no issues other than what I described.

  • Sleep effectiveness improved

    by Vyroncoleman

    I have used daily since purchase approx 3 months with very satisfactory results

  • Actionable data

    by JohnFromTulsa

    Many QS apps provide too much data and not enough info on specific steps I need to take to be healthier. The special notes portion of this app makes it easy for me to understand over time what really helps/hurts my sleep. Love it!

  • Great app!

    by Sleepingwellnow

    I have really enjoyed the Sleep Cycle app in the few months I have been using it. Powerful!!

  • Works. Love it.

    by MTL3339

    Works. Love it.

  • Love it!

    by M@NDY17

    I've been using it just over a year now and I love it. The monitoring system is on point. And the graphs and statistics really help me target what's going on with my sleep cycles!

  • Much better

    by Sleep Deprived Teenager

    Awesome because it gives me time to wake up. The harsh alarm tones killed me at 6 AM. Now I can wake up easier and happier, with the best sleep ever.

  • Awesome

    by Weaverd420247

    This app works great. A friend told me about it and I have been happy I gave it a try. I like the variety in settings and it really does work with helping you get up and around in the morning. Recommended!!

  • Great app

    by physicist kid

    This app works exactly as promised. I use it almost every night and it has helped me greatly improve my quality of sleep.

  • Awesome

    by Salty santi

    Now I can see my sleep activity to get better sleep!

  • Great alarm

    by yenyentraub

    The wake up feature is great.

  • Graph

    by Sandra Aupperlee

    I like the app, it needs to explain the graph better What's the time mean 2 hrs 2 min ? Explain it

  • View More


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