Sleep Cycle alarm clock

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.

#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.

"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 and is the world’s most used intelligent alarm clock.


* 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

√ 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 75.40 MB. The current version is 5.4 and works well on 9.0 and high ios versions.


Maybe you snore. Maybe you don’t. But a third of the adult population do. Despite getting a full night’s sleep, they don’t know why they’re tired or annoyed, anxious or deprived. But that’s what poor sleep does to you, and snoring is part of poor sleep.

Well, not anymore. Using our patented sound technology to analyse the quality of your sleep, we’re now able to detect your snoring. If you’re one of those thirds, then Sleep Cycle is the first step to help get you on track to resolve your snoring and earn that sleep quality you deserve.

Sleep Cycle alarm clock App Tips & Tricks

Sleep Cycle alarm clock Reviews


Great app!  GymMom00  5 star

Seriously love this app! The alarm clock wakes you based on sleep rhythm rather than a set time so you wake more rested and refreshed. Seeing the sleep pattern is great and helps you visualize why you might not be getting the rest you need. Thanks for giving so much value in the free version!!


Doesn't burn thru memory  JohnsonFamily07  5 star

Seems accurate and has great stats


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!


Eye opening. No pun intended.  PTAScoutMom  4 star

I've learned a lot about my sleep habits so far and I don't doubt that I will continue to learn even more.


Great app  Cksmomof2  4 star

I wont pay for it. As for a free app this is great

A the gymnast

I wake up refreshed  A the gymnast  4 star

I used to be someone who would sleep through the alarm and wake up dangerously close to when my bus was to arrive. As soon as I got this app I woke up 30-60 minutes earlier than before and I used to wake up dead tired but not anymore. I feel refreshed and ready to take on the day. Although I hate how the app makes you pay for the better sounds but overall I think this app is amazing.


It remembers when I can't!  TiredMom89-17  5 star

This app is awesome for a tired mom who can't remember why she walked into a room much less when I went to bed. Using this app helps me make sure I get enough sleep with ease.


A good nights rest  svnDown  5 star

Been a while since I woke up without a headache or feeling groggy. App helps a lot by not interrupting my sleep cycle. You will need to keep it plugged and make sure the microphone is pointed towards you while you sleep.


Great!  Olga6698  5 star

This app is really cool and it actually works. I have used this app for the past two years and I have so much data about my sleep. I put my phone on my nightstand every night and it monitors my phases of sleep as well as how long I slept for. It helped me to get into a better routine and I wake up more energized and ready to go!


Helpful app  Knsp  5 star

This app is helpful in tracking my sleep. I appreciate that it's free. :)


LOVE!  Katawhat  5 star

I love this app. Not only is it neat to really understand how I sleep throughout the night but the features help me sleep better.


Perfect  soryana  5 star

Perfect and very simple


Very helpful app  ElOsOx3  5 star

I bought this because I never wake up fully charged in the morning. That being said, I showed the doctor and he mentioned that I could have restless leg syndrome as well as sleep apnea. As soon as I started using this app he heard n saw my sleep patterns, helping me without having to spend a lot more on analysis. Though sleep apnea was something that was very important and was done, found out that I have really shallow breathing as well as that I stop breathing at night.


This App works Like a Dream!!!  DUKE375  5 star

After reading all of the negative reviews I felt obligated to share my thoughts on this awesome app. Not only does it work, for one dollar i couldn't ask for a better addition to my iphone. Although i cant scientifically say that this app works i can attest to the fact that the graphs of my sleep patterns seem to coincide with my nightly sleep experience . Furthermore, the usefulness of the apps feature "Sleep Notes" is endless. Also, after testing this device on a Temper Pedic mattress I was surprised to find that the app accurately recorded my movements. In short i truly believe this app works and for 1$ its a no brainer. I highly recommend it and have to all my friends and family. May2017 Just wanted to check back in a report that I am still loving my sleep app!!! Its a total game changer.


Great app  Crattin623  5 star

Works for me. Love the new features from the latest update.

Lucy 'Lil

Very thorough analysis!  Lucy 'Lil  5 star

It is impressive how accurately it shows your timings: going to the bathroom, waking up with a bad dream, and so own. It really does not get mixed up even with your little kids joining in bed with you. Furthermore you can examine and reflect on days where you more easily went into deep sleep, or have data and sound on your recently developed snoring! Impressive!


Won't even open  MutMatt  1 star

I just updated yesterday and now I can't use it at all. Won't even open. I've been using this app for two years and now I can't even open it. All my data will be lost. Super bummed. Help!


Lit  OVOwave  5 star

Really useful 10/10

Marine one kd

4 Years of easy waking  Marine one kd  5 star

First review I've ever written. Fantastic app. It has always worked well. This is my single most can't-do-without app! It made a huge difference in waking up refreshed. I also have never had a single night where the alarm failed to wake me.


Music for Sleep Aid  samjk14  4 star

Only thing I would like to see is an option to use my music as a sleep aid (piano music is great for this).

Sleep Cycle alarm clock Comments

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