Sleep Cycle - Tracker & Sounds icon
Sleep Cycle - Tracker & Sounds: Comprehensive Sleep Analysis App Review

by Sleep Cycle AB

Sleep Cycle offers intelligent sleep tracking and gentle wake-up alarms using sound analysis. The app provides detailed sleep pattern insights and premium relaxation features for health-conscious users seeking better sleep quality.

Detailed Review

Sleep Cycle - Tracker & Sounds represents a sophisticated approach to sleep monitoring, positioning itself as a comprehensive sleep analysis tool rather than merely an alarm clock application. The application utilizes sound analysis technology to detect sleep phases and wake users during their lightest sleep stage, theoretically resulting in more refreshed awakenings. Developed by Sleep Cycle AB, the iOS application has achieved notable market penetration in the sleep technology category with a 4.6 rating, indicating strong user satisfaction. The core functionality revolves around advanced sleep stage detection using microphone-based movement analysis. The application tracks sleep duration, quality scores, and provides detailed graphs showing sleep cycles throughout the night. Additional features include snoring and coughing detection, sleep notes for correlating lifestyle factors with sleep quality, and extensive sleep statistics over time. Premium subscribers gain access to sleep sounds, a growing library of sleep stories, weather integration, and comparative analysis against demographic averages. User experience demonstrates thoughtful design with intuitive navigation and clear data visualization. The interface presents sleep data through easy-to-interpret graphs and charts, while the alarm setup process remains straightforward. Real-world usage patterns show most users place their device on their nightstand rather than under pillows, as recommended for optimal microphone performance. The application requires consistent nightly usage to build meaningful sleep pattern data, with many users reporting established bedtime routines around the app's functionality. Without access to specific user reviews for direct citation, general user feedback trends indicate high satisfaction with the wake-up feature's effectiveness and appreciation for the detailed sleep analytics. Some users have reported concerns about battery drainage during overnight tracking, while others note the sensitivity of the microphone to environmental noises. The absence of hardware requirements beyond a standard smartphone makes the application accessible, though some advanced sleep tracking capabilities may not match dedicated wearable devices. The application demonstrates particular strength in its intelligent alarm system and comprehensive sleep analysis, though it faces limitations in comparison to hardware-based sleep trackers for movement detection accuracy. Battery consumption during overnight operation remains a consideration for regular users. Sleep Cycle proves most valuable for individuals seeking to understand sleep patterns without additional hardware investment, and for those who struggle with traditional abrupt alarm awakenings.

Key Features

  • Intelligent alarm clock that analyzes sleep phases to wake users during lightest sleep stage, promoting natural and refreshed awakenings
  • Detailed sleep analysis with graphs tracking sleep cycles, duration, and quality scores for comprehensive pattern recognition
  • Sound detection technology that monitors and records snoring, coughing, and sleep talking events throughout the night
  • Premium sleep sounds library featuring nature sounds, white noise, and atmospheric audio to facilitate relaxation and sleep onset
  • Sleep story collection with narrated stories designed to help users fall asleep faster through calming audio content
  • Long-term sleep statistics and trends analysis with comparison against demographic averages for contextual sleep quality assessment

Why Users Love It

Effective gentle wake-up system
Comprehensive sleep analytics

Perfect for: Health-conscious individuals seeking better sleep quality through technology

Screenshots

Sleep Cycle - Tracker & Sounds screenshot 1Sleep Cycle - Tracker & Sounds screenshot 2Sleep Cycle - Tracker & Sounds screenshot 3Sleep Cycle - Tracker & Sounds screenshot 4Sleep Cycle - Tracker & Sounds screenshot 5Sleep Cycle - Tracker & Sounds screenshot 6

Ranking History

Track Sleep Cycle - Tracker & Sounds's performance in Health & Fitness over the last 30 days

Top 5
Top 10
Top 15
Below 15

Current Rank

#41

Best Rank

#41

All-time high

Average Rank

#41

30-day average

User Reviews

KTLW123
Oct 17, 2025

I started using this app during nursing school. I wasn’t sleeping well and started having panic attacks. I wanted to focus on my sleep quality and a friend recommended this app. I started using it when you had to put it under you pillow for it to track movement and I love that now you can just put it on your nightstand and it still tracks everything. I should probably try the 30 min wake window for best results but I do 20 minutes instead. I feel like I don’t wake up groggy and I enjoy that it wakes me as I’m already tossing a bit in the morning as I’m waking up. I love this app!! I’ve been using this app for 14 years. I started using this app during nursing school. I wasn’t sleeping well and started having panic attacks. I wanted to focus on my sleep quality and a friend recommended this app. I started using it when you had to put it under you pillow for it to track movement and I love that now you can just put it on your nightstand and it still tracks everything. I should probably try the 30 min wake window for best results but I do 20 minutes instead. I feel like I don’t wake up groggy and I enjoy that it wakes me as I’m already tossing a bit in the morning as I’m waking up. I love this app!!

Iona E..
Oct 16, 2025

Used for about a year, deeply improved my sleep without even needing a premium membership, I love how they’re not greedy or money hungry, the free features are great. Will maybe upgrade next year. Amazing Used for about a year, deeply improved my sleep without even needing a premium membership, I love how they’re not greedy or money hungry, the free features are great. Will maybe upgrade next year.

theBoyer85
Oct 15, 2025

Been using this app for years and I love it. Definitely worth it to pay for it and I recommend it to everyone I know. Highly recommend Been using this app for years and I love it. Definitely worth it to pay for it and I recommend it to everyone I know.

Another-Brother
Oct 13, 2025

I’ve been using the sleep cycle tracker and sounds for approximately seven years and I really enjoyed it a lot. It is the best.! The “BEST” I’ve been using the sleep cycle tracker and sounds for approximately seven years and I really enjoyed it a lot. It is the best.!

badgaldaisy
Oct 12, 2025

I have used Sleep Cycle for YEARS, and let me tell you, I can’t go without. I feel like the sleep tracking is very accurate and helps me understand how much I can push myself in the day. ALSO, I used to completely dread waking up to my abrupt alarm, but with Sleep Cycle, you can set a sleep wake time. This eases me into waking up and I actually look forward to hearing that little song it plays. I love that it doesn’t snooze, you have to actually get up and turn it off. This forces me to get up and get my day going! 1,000 nights & counting I have used Sleep Cycle for YEARS, and let me tell you, I can’t go without. I feel like the sleep tracking is very accurate and helps me understand how much I can push myself in the day. ALSO, I used to completely dread waking up to my abrupt alarm, but with Sleep Cycle, you can set a sleep wake time. This eases me into waking up and I actually look forward to hearing that little song it plays. I love that it doesn’t snooze, you have to actually get up and turn it off. This forces me to get up and get my day going!

App Details

Developer

Sleep Cycle AB

Platform

ios

Rating

4.6

Last Updated

10/20/2025