Waking up made easy

Sleep Cycle is an intelligent alarm clock that tracks your sleep patterns and wakes you up in light sleep - the natural way to wake up, feeling rested and energized. No need to place your device in bed - Sleep Cycles uses sound analysis sleep tracking.

How it works

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

• While you sleep, your movements vary depending on what sleep phase you are in. Sleep Cycle’s patented sound technology tracks your sleep patterns using sound or vibration analysis, monitoring your movements in bed throughout the different sleep phases.

• Sleep Cycle finds the optimal time when you are in light sleep to wake you up in the morning, during a predefined 30 minute time window that ends at your set alarm time. Waking up in light sleep feels like waking up naturally without an alarm, leaving you feeling rested and energized.

• All you need to do is turn Sleep Cycle on before going to bed, and place your device on your nightstand or close by on the floor.

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.


Free features

√ Sleep analysis with Sleep Cycle patented sound technology, or accelerometer

√ Sleep Cycle Apple Watch App integration with silent wake up

√ Detailed sleep statistics and daily sleep graphs

√ Fully integrated with Apple Health, exchanging sleep analysis and heart rate

√ Carefully selected alarm melodies

√ Snooze by shaking or double tapping the phone lightly

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

Premium features

√ Longterm sleep trends

√ Compare your sleep data to world sleep statistics • Snore trends - view historical snore trends data

√ Weather - see how weather affects your sleep quality

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

√ Sleep aid - helps you fall asleep easier

√ Sleep notes - see how events such as drinking coffee, stress, working out, or eating late affect your sleep quality

√ Wake up mood - see how Sleep Cycle affects your wake up mood

√ Online backup - lets you secure your sleep data online

√ Export sleep data to Excel for detailed analysis

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


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 $39.99 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:

What's New

Version 5.5.4

In this release, we’re now supporting the new iPhone XS Max, the iPhone XR and the Watch Series 4, not to mention the updated WatchOS 5 for all devices. That’s a lot of numbers and letters, but the magic of waking up at the right time, remains.

Ratings and Reviews

4.6 out of 5
36.9K Ratings
36.9K Ratings

Editors’ Choice

When your alarm goes off in the morning, is your first reaction to throw it against the wall? The problem isn’t with you—it’s with your alarm clock. Thankfully, Sleep Cycle offers a clever solution for improving your rest. Rather than yanking you from your slumber at a specific minute, the app analyzes your sleep patterns and then picks the moment you’re sleeping lightest (within a half-hour window you define) to rouse you gently. Best of all, unlike some smart alarms, this one doesn’t need extra hardware or require your device to be resting on your bed: it tracks your sleep using just its microphone!


Wake ups are easy!

I’m in love with this app! I originally bought it way back when and didn’t really get along with it at the time. But, about a year ago I invested in some Philips Hue bulbs, so, thought I’d give the app a go again as the idea of waking to slowly brightening lights during the darker months was super appealing. It didn’t disappoint! What I also love is the amazingly calming yet super effective wake up sounds which have kept me using the app even though I’m not using the Hue bulbs anymore. What I hadn’t expected to find helpful was the sleep tracking, but knowing whether I’ve been able to get to sleep quickly, whether I’ve stayed asleep and whether it’s been restful have really helped with my sleep and mood disorders. My only disappointment was having to pay again to use the backup and sync feature, as all my other premium features came across great.


Overly sensitive, everything’s basically premium

I got this since I am a terrible sleeper and I figured maybe this was a way to track where I’m waking up and how long I stay asleep at a time.. I actually sleep 3/4 hours a night but I go to my bed and stay put for as long as possible to try and promote a routine, even if it’s staring out my ceiling. Apparently I slept 7hours and 35minutes.. and snored for almost 3 of them. The snoring was hilariously a combination of my cat and the road outside my house, I swear I don’t purr or have a horn. And the app on my tablet noticed I slept for 3hours and 17 minutes.. which is a big jump. This also puts your phone into basically flight mode, you won’t hear any messages or anything else.. I get the purpose but if you’re likely to get called into work early via text I wouldn’t chance it. I think that can be turned off somehow but I didn’t realise it done this. Personally this app isn’t accurate if your house has any noise, like the road outside of mine.

Developer Response

Hi there! The snore detection shouldn't pick up noises like that, please send us the audio files to and we will look into this!
All the best, Nora


Sleep Cycle Premium
Deeper sleep insights and snore analysis
Free Trial


Sleep Cycle AB
123 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
Age Rating
Rated 4+
© 2018 Sleep Cycle AB
In-App Purchases
  1. Sleep Cycle Premium £24.99
  2. Premium £1.49
  3. Premium £7.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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