Sleep Cycle alarm clock

Sleep Cycle alarm clock application logo

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. No need to place your device in bed - Sleep Cycles uses sound analysis sleep tracking.

Sleep Cycle helps millions of people all around the world wake up rested.

Continuously rated as the best smart alarm clock on the market. Featured in: CNN, Wired, The Guardian, The Wall Street Journal, BBC, The New York Times.

#1 Top Paid app in United States
#1 Top Paid app in United Kingdom
#1 Top Paid app in Japan
#1 Top Paid app in Germany
#1 Top Paid app in France
...and more.

* Our patented technology monitors your sleep movements using sound or vibration analysis.

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

* Recommended placement: Near the bed or on the floor.

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 microphone or accelerometer in your iPhone to monitor your movements 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.




√ Sleep analysis with our patented sound analysis technology or if you prefer, the sensitive accelerometer in your iPhone

√ Detailed sleep statistics and sleep graphs

√ Carefully selected alarm melodies

√ Snooze by shaking or double tapping the phone lightly

√ Snore detection - detect, track and measure your snoring

√ Fully integrated with Apple Health. Exchanges sleep analysis and heart rate

√ 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

√ Support for the M7 and M8 co-processor - measure your daily physical activity and see how it affects your Sleep Quality

√ Export sleep data to Excel for detailed analysis


√ Online backup - secure your data online to make sure it’s always with you

√ Long term trends - compare your sleep with the world

√ Snore trends - view historical snore trends data

√ Sleep aid - helps you fall asleep faster

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

√ Wake up mood - see how using Sleep Cycle affects your morning moods

√ Weather - see how weather affects your Sleep Quality

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

√ Philips HUE light bulb support - simulate a natural sunrise to give you an even softer wake-up

and more


Ability to charge your phone by the bed.
Ability to place your phone near the bed, such as on a nightstand table or on the floor.


The optional Premium subscription costs $29.99 per year.

It will be charged from your iTunes account after the purchase. You can manage or cancel your auto-renewable subscription by entering the user settings in iTunes after the purchase. The subscription will be auto-renewed 24 hours before the subscription period ends with the same kind of subscription you already bought to the same price. It's not possible to abort the subscription during the time it's active. Terms and Privacy:

Sleep Cycle alarm clock App Description & Overview

The applications Sleep Cycle alarm clock was published in the category Health & Fitness on 2009-07-23 and was developed by Northcube AB. The file size is 80.22 MB. The current version is 5.4.3 and works well on 9.0 and high ios versions.

Bug fixes and improvements

Sleep Cycle alarm clock App Tips & Tricks

Sleep Cycle alarm clock Reviews


Begs for ratings  RexGoliath  1 star

One star


My Favorite App  Ash8605  5 star

I have extreme insomnia and have been put on prescription sleep medicine. I wanted this app to track my sleep before the medication and at different dosage levels. I am able to take this in and show my doctor my progress. When you pay for it, it shows you your snoring habits and has recordings which is important for me because I am going to a sleep study. I was concerned that my husbands sleep would interfere with my own data but it is so smart that it knows the difference between him snoring and me snoring and him moving around vs me moving around! This is a must! I love that it has a time period where it reads when would be the best time to wake me up according to which part of sleep I am in!

Fungus Mungus

Love it!  Fungus Mungus  5 star

I've used this for several years now and I love it! From the gentle way it wakes me to the logical way the snooze function works, it's earned its place on my top 10 used apps list.

شاكر لكم

Thanx  شاكر لكم  5 star

Nice app and helpful 😍


Fascinating  Jeburg  5 star

So interesting to see how my body is working or not when sleeping.

Mort dubois

Turns every night into a tense ordeal. Also hard to cancel.  Mort dubois  1 star

SC was recommended to me. Tried it and found myself spending more time worrying about how my night would score than sleeping. Tried to cancel after 30 days and found that they had charged my card at 12:01am this morning. 0/10


Great; a few minor flaws  CH535  4 star

On the whole, this is a very effective tool to help one get to sleep at night, track one’s sleep, and wake one up gently at the other end. However, it’s not always clear how the statistics work. In the air pressure graph, for example, nothing is marked on the x-axis, so it is impossible to tell what is being correlated with what. Also, it would be helpful if you could click on the tags / factors that influence your sleep and see all of the individual entries thus tagged (so if I clicked on “watched tv” I would be able to pull up all of the nights on which I watched tv before going to bed). I’d greatly appreciate an update with these features. Thank you!


NOT FREE  egold3910  1 star

Will automatically charge you $30 per month after first month. Quite a process to just cancel my "subscription" 1 day after downloading.


Technical issue  Dhddhtds  1 star

I'm unable to purchase any in-app purchases because when it asks for Touch ID it doesn't respond and seems to be the only way to subscribe. My Touch ID works fine otherwise so i don't know what the problem is. Thanks


Love it!  stellar8400  5 star

This app really does work! I wake up feeling rested and not groggy - I love it!


Confusing results  Han-Han29  2 star

After upgrading to an Apple Watch I stopped wearing a fitness band to track my sleep which I’ve always found interesting. I wanted this to continue and rediscovered sleep cycle. However I keep getting inconsistent and confusing results. It often says I’m awake when I remember sleeping the whole night through. I don’t know if it’s because I share a queen bed to myself and sleep in the middle of the bed I’m not sure if this is why my results are confusing but I’ve stopped using the app now


Mostly Good  iiSuperGirlii2015  4 star

So I’ve been using this app for a while now and so far it had been fine but I woke up one morning to see a night that practically said I was awake the whole night, except for the fact that I only remember waking up once, very vaguely. That night I had decided to put the fan on because it was a bit warm so I thought that might have affected the results. Apparently I was awake since like 2am which is absolutely ridiculous because somehow I was awake for 5 whole hours in bed, but I remember waking up at the time I had set the alarm but I did not hear the alarm. I will admit when I woke up I felt exhausted for some unknown reason but I had never got results like this beforehand. This was only one night, however, but I am beginning to question its accuracy when a fan is on.


Music to fall asleep to  Hb490  4 star

I love falling asleep to music playing through my Bluetooth speaker. Sleep cycle does now allow this. I understand it puts out the sleep tracking whilst the music is playing. But I usually set it to turn off after half hour or so. It would be nice if I at least had to option to do it. The app only lets me play through my iPhone speaker.

Stacey Jayde

Great app. One downside for me  Stacey Jayde  4 star

My only downside is you physically have to open it every night, for the alarms to work. Other than that the app is brilliant


Good  GD80  4 star

But sometimes it says I’m asleep when I know I was awake.


Great app...wish it were free  Martinmcngmy  4 star

Thanks Sleep cycle! I do see the value you bring even when I sleep!


Subscription based services ruined this app  OneSevenThree  1 star

I bought this app when you could pay a one time fee now you have pay what I paided for the app ONCE, Monthly?! Ridiculous. I don’t want cloud sharing.


Handy app  Sensh1  4 star

Works well for me, great little app


Almost perfect  Maverick0594  4 star

It's accurate when I sleep on my own. However it constantly picks up on my partners and dogs movement. I have the snore recorder and it's always picking up on my partners snoring and my dog snoring.


Sleep  Doona71  5 star

Love it


Great, but Incompatible with Polyphasic  Vegeria  4 star

I sleep for 5 hours at night usually, and the alarm for this works great. But if I use the app for when I sleep during the day for a couple hours, it brings all my statistics down. It says I got really poor quality of sleep. I wish you could have multiple sleep sessions in a day mapped out in one chart, rather than breaking it up.


Better sleep is possible  mason_yup  5 star

Do it


Needs to be on Apple Watch  Ryand42  4 star

Good app but they need to make one for the Apple Watch.


Love it  XiaoShongMao  5 star

Does exactly what you want it to!

Taco SF Chicago

150+ days  Taco SF Chicago  5 star

Habit forming, great analysis, compels me to sleep earlier


Waking up not tired  Vanessarose04  5 star

I love how I can wake up and not feel really tired in the morning


Didn’t know I snored more when my husband does  Lookin4Miles  4 star

Interesting that I snore louder and more frequently when my husband is home. Monitoring helped me realize the importance of going to bed earlier.


Broke on iOS 11 - alarm doesn't go off  MicahBF  1 star

Been using this app for years, however the iOS 11 upgrade seems to have broken it badly. The app just shuts off at some point and the alarm never goes off.


Beware! Ineffective Premium Songs  BaaronS  1 star

I used to love this app but the latest update introduced new songs that will not wake you up! This is a deal breaker and defeats the purpose of an alarm clock. There is currently no way to exclude songs from the random selection so you are playing Russian roulette with your morning. Better hope you didn't have an important flight that day! This only applies if you're using Random Song as a wake up method. It can be fixed my either using a specific alarm, which gets boring, or by this company introducing a fix. They can either remove those songs or give the ability to exclude songs from the random shuffle. Unfortunately, in its current state, it is inferior to the previous version and so I can only give it 1 star. Please fix this issue if possible, the songs in question are Maple Beauty, Hideout Grove, Caribbean Cove.


The Secret to Waking up on Time  sstkdoxr320  5 star

I think I have found the perfect combination of alarm clocks. I always set Sleep Cycle to be my first alarm, and another app called SpinMe Alarm Clock as my backup. Sleep Cycle usually wakes me up in my optimal wake up time, but sometimes it just isn’t enough for me and I’ll either snooze through it or turn it off and go back to bed. If Sleep Cycle fails to wake me up, my backup alarm SpinMe will start blaring which can only be turned off if I get out of bed and spin around twice before it finally shuts off! Crazy but it works and I haven’t been late to work since I started doing this. And no you can't just spin the phone around in your hand! Sleep Cycle really does help in waking you up during your light sleep. I can feel it working most mornings. And I have studied the science behind sleep so I can attest that the premise of this app isn’t merely a placebo, but something that has actually been proven. However the problem that this alarm clock doesn’t solve is that sometimes (especially on nights where you get very little sleep), it can be really easy to ignore your alarm clock and really hard to wake up. That’s where SpinMe Alarm comes in, an alarm clock that is impossible to ignore and forces you awake. I highly recommend using these 2 alarms together. Best few dollars I’ve ever spent!

Sleep Cycle alarm clock Comments

Sleep Cycle alarm clock Health & Fitness Download