Sleep Cycle - Tracker & Sounds

Sleep Cycle - Tracker & Sounds

Alarm Clock and Tracking App

28K ratings
2079 reviews
#49 in top-grossing Health & Fitness
🌟 Lifestyle
💪 Health & Fitness
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 23, 2009
  • August 24, 2026

Features

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About

This app uses sound analysis to track sleep patterns, identify potential issues, and build healthier sleep routines. It features an AI sleep coach, a smart alarm to wake you gently, and tools to record snoring and sleep talking.

AI sleep coach
Smart Alarm clock
Sleep pattern tracking
Snore and cough detection
Sleep sounds library
Sleep analysis
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What users say

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+1

What's New in Sleep Cycle

6.26.32

August 24, 2026

Bug fixes and improvements.

Subscription plans

Premium

Subscription to Premium - Cloud backup of you sleep data

$29.991 Year
1 Month trial
How to cancel Sleep Cycle subscription ⁉️

Charts

Top Grossing

This app dropped -4 positions in Health & Fitness chart.

Last updated on August 27, 2026.

Top Free

📈 119+6

Health & Fitness

This app rose +6 positions in Health & Fitness chart.

Last updated on August 27, 2026.

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User reviews

Poor analysis

The apps algorithm is a joke. I get the same level “high” whether I cough slightly four times a night or have bronchitis and literally cough all night long.

Disappointing - Sane Bug After Years

I used Sleep Cycle in the past and stopped using it because it had a serious alarm problem. I decided to download it again recently, assuming these bugs had finally been fixed.

Unfortunately, the exact same issue happened again.

I set my alarm for 7:30 AM, with the Smart Alarm window set to 7:00–7:30 AM, and selected my preferred alarm music. Around 4:00 AM, the app unexpectedly woke me up with a beeping sound instead. That is roughly three hours before my scheduled alarm and completely outside the Smart Alarm window.

When I checked the app afterward, the alarm was still showing 7:30 AM / 7:00–7:30 AM, but the sound was no longer what I had selected.

This is a sleep alarm app. If I can’t trust it to keep the time and alarm settings I selected, I can’t trust it to wake me up.

I came back because I thought these issues had been fixed. Unfortunately, I’m disappointed to find that I’m experiencing essentially the same problem I had years ago. I should not have to use a second alarm because I don’t know whether Sleep Cycle will actually follow the settings I chose.

Please fix the alarm reliability and stop changing/overriding user-selected alarm behavior.
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Sleep getting better

Since I have been using the Sleep Cycle app I have found my sleep has improved significantly and I am now able to get to bed at a reasonable time and more importantly I get up at set time in the morning. It has taught me so much about my sleep. I have recommended Sleep Cycle to my clients/friends having difficulty with their sleep. It is amazing!
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Works for 4 days

On the 5th day, it just freezes whenever you go to the journal

Can’t get it to open or work

I get to the subscription page and click start free trial and nothing happens, it’s just frozen.

Developer apps

Featured on

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User experience

🐞

Reported Bugs

3 issues

App crashes or stops recording sleep randomly

Bug

Inconsistent time zone handling, causing alarm issues

Bug

Microphone issues, unable to detect certain sounds

Bug

Requested Features

4 requests

Ability to edit sleep data and notes

Feature

Nap tracking and power nap functionality

Feature

More customization options for alarms and sleep aid

Feature

Improved integration with Apple Health and other devices

Feature

FAQ

What does Sleep Cycle do?

Sleep Cycle uses sound analysis to track your sleep patterns, identify potential sleep issues, and help you build healthier sleep routines. It offers an AI sleep coach, a smart alarm to wake you gently during your lightest sleep phase, and tools to record nighttime noises like snoring and sleep talking.

What are the key features of Sleep Cycle?

Key features include an AI sleep coach named Luma for personalized guidance, a Smart Alarm clock that wakes you gently, patented sound technology for sleep tracking without wearables, detection of nighttime noises like snoring and coughing, and a library of sleep sounds and guided meditations to help you drift off.

How much does Sleep Cycle cost?

The app is free to download and use with many core features. However, it also offers premium tools and advanced features through in-app purchases, such as detailed data export, Philips HUE sunrise integration, and Apple Health sync.

What devices is Sleep Cycle compatible with?

The app is designed for mobile devices and can track sleep using your phone's microphone or accelerometer, meaning no additional wearables are needed. It also offers integration with Apple Health for a more comprehensive view of your wellness data.

How can Sleep Cycle help me improve my sleep?

By tracking your sleep patterns and providing insights, Sleep Cycle helps you understand what affects your rest. The AI sleep coach offers guidance, the smart alarm ensures you wake up feeling refreshed, and the sound library aids relaxation, all contributing to a healthier sleep routine and better overall sleep quality.