Sleep Cycle - Sleep Tracker 4+

Snore Recorder & Alarm Clock

Sleep Cycle AB

    • Free
    • Offers In-App Purchases


Sleep better and wake up rested with Sleep Cycle’s smart alarm clock. It analyzes your sleep patterns and detects snoring, sleep talking, coughing and other sounds.

Start your day feeling energized with Sleep Cycle’s intelligent alarm clock, designed to gently wake you up while you’re in your lightest sleep phase. Plus, you’ll get a detailed analysis as our sleep tracker monitors your bedtime patterns from the moment your head hits the pillow, and access to premium features including relaxing sleep sounds and story library


1. Gently does it - Waking you up while you’re in a light sleep is the natural way to wake up.

2. Understand your sleep - Learn about your bedtime patterns with detailed sleep tracking and analyses.

3. Nothing under your pillow or to wear on your body - Simply turn Sleep Cycle on before going to bed and place your device on your nightstand or close by on the floor. Sleep Cycle uses sound analysis to identify sleep states, using your microphone as a sleep recorder, tracking your movements in bed.

Understanding your sleeping patterns mean you can wake up feeling refreshed and ready to start your day. Download the Sleep Cycle app today for the easiest way to get a good night's sleep.


√ Sleep analysis with Sleep Cycle patented sound technology or accelerometer

√ Detailed sleep statistics and daily sleep graphs

√ Fully integrated with Apple Health, exchanging sleep analysis

√ Carefully selected alarm melodies

√ Snooze by shaking or double tapping the phone lightly

√ Customizable wake-up window. From instant (regular alarm clock), up to 45 minutes

√ Sound recorder & Trends - Capture snoring, sleep talking and other sounds and view your trends

√ Sleep Aid - our library of sleep stories, relaxation guides and calm sleep sounds specially designed to help you fall asleep easier. (Mindfulness & meditation)

√ Trends – gather long-term trends on your sleep patterns

√ Comparison Data - Compare your sleep patterns to world sleep statistics

√ Weather & Sleep - See how different types of weather affect your sleep quality

√ 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 over time

√ Online Backup - Lets you secure your sleep data online

√ Data Export – Download 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 Premium subscription will be charged from your iTunes account 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 at the same price. To avoid automatic renewal, you must cancel the subscription at least 24 hours before it expires. You can manage or cancel your auto-renewable subscription by entering the user settings in iTunes after the purchase. It's not possible to abort the subscription during the time it's active. Any unused portion of a free trial period, if offered, will be forfeited when you purchase the premium subscription.

Terms and Privacy:

What’s New

Version 6.23.11

Bug fixes and improvements.

Ratings and Reviews

4.7 out of 5
367.9K Ratings

367.9K 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, 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.

Claire Bear Gleek ,

Reliable, User Friendly, Absolutely Fantastic

I recommend this app to anyone that is remotely having trouble sleeping. I’ve legit been using this every single night for 5 years. I absolutely LOVE that I can set it every night. I use it as sort of a personal check in with myself before I sleep by including some sleep notes about my day to determine the quality of my sleep. The sleep notes are just a a check box that you can select if it applies to you that day. Examples might be: alcohol, tired, sick, worked out, period, traveled, etc. and you can add your own custom sleep notes options! It’s perfect for my short attention span so you aren’t obligated to actually journal sentences, but will have a short reference of the day to look back on months from now.

I also love the quick check in with myself after I wake up! I wake up smoothly over 30 minutes and reach for my phone which gently fades out the alarm which I pick up my phone, no button or bright light required immediately!! Once I actually decide to wake up, the app says good morning and shows me the weather once I stop the alarm, I get to select how to slept also choosing between just three buttons. Bed, medium, or great!

I highly recommend this app and I barely ever review anything unless it’s worthwhile. I pay for the annual subscription but I also used the free version for years. Both are extremely worth it. The premium allows me to keep my sleep data stored forever (or as long as I want).

Developer Response ,

Wow! Thanks for this awesome review. Made our day to read it! And also all the thoughtful detail on what's worked well for you.

carlywearspradax ,

Overdue Review

It’s long overdue that I write a review for this app because I’ve been lucky enough to be grandfathered into Sleep Cycle’s pro version. I downloaded the app back when I was in high school when it was 99¢ and continue to use it almost every night (10 years later), mostly with the intention to utilize the alarm. I always had at least 2 or 3 different alarms that all failed to wake me up until I bought Sleep Cycle.
I absolutely love that I have access through the app to different sleep sounds, like ASMR or story telling, because when I listen to things through my laptop instead, it reads me as being awake and talking.
I’ve picked up on numerous hilarious sleep talking incidents with the ability to share the sound recordings with my friends and family, and I love being able to see which days of the week I need to work on getting myself to sleep more consistently and tracking the triggers that lead me to sleep better or worse.
Most of all, though, I appreciate that the company has included me, as an initial investor, in the updates throughout time. Having had the opportunity to realize what the app does for me makes me think that the least I could do is write them a good review!

Developer Response ,

Wow! You made our day, thanks so much for taking the time to write us this review. It's great to hear from our early adopters who still enjoy using and exploring the app. Have a great day and thanks for making ours:-)



Sleep notes help you track factors that can impact your sleep. Journal your way to better sleep with sleep notes.


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Sleep Cycle Premium
Unlock all sleep aids, snore detection & more
Free Trial

App Privacy

The developer, Sleep Cycle AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Purchases
  • Location
  • Contact Info
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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