# Sleep Cycle: Sleep Tracker > Smart alarm clock & sleep recorder. Sleep sounds & white noise for better sleep Canonical page: [https://chrome-stats.com/d/com.northcube.sleepcycle](https://chrome-stats.com/d/com.northcube.sleepcycle) ## Overview - **ID:** `com.northcube.sleepcycle` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Sleep Cycle AB - **Category:** HEALTH\_AND\_FITNESS - **Downloads:** 19,126,480 - **Rating:** 4.35 / 5 (218,007 ratings) - **Version:** 4.26.36-production - **Last updated:** 2026-09-22 - **First published:** 2014-06-16 - **Publisher country:** SE - **Size:** 110 MB - **Data as of:** 2026-09-24 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.northcube.sleepcycle) - **Website:** [http://www.sleepcycle.com](http://www.sleepcycle.com/) - **Privacy policy:** [https://www.sleepcycle.com/privacy-policy/](https://www.sleepcycle.com/privacy-policy/) ## Description Sleep Cycle is a comprehensive sleep tracker and smart alarm clock designed to enhance your sleep quality and morning routine. It features a unique sleep tracking system that requires no phone placement under the pillow, ensuring convenience and accuracy. The smart alarm clock gently wakes you during your lightest sleep phase for a more refreshing start to the day. Additionally, Sleep Cycle records snoring, sleep talking, coughing, and external noises, helping you monitor factors affecting your rest. It offers personalized advice to improve sleep habits, incorporates sleep sounds like white noise and rain, and provides guided meditations and bedtime stories for easier fall asleep. Features extend to wearable devices with Wear OS support, integrated sleep programs, and health data syncing with Google Fit, making Sleep Cycle a versatile tool for anyone seeking better rest and well-being. ## Rankings - #7,910 — Overall - #55 — Android wear (Gross) - #80 — Health and fitness (Gross) - #138 — Android wear (Free) ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_COARSE_LOCATION` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.ACCESS_WIFI_STATE` - `android.permission.ACTIVITY_RECOGNITION` - `android.permission.BLUETOOTH_CONNECT` - `android.permission.BLUETOOTH_SCAN` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_DATA_SYNC` - `android.permission.FOREGROUND_SERVICE_LOCATION` - `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK` - `android.permission.FOREGROUND_SERVICE_MICROPHONE` - `android.permission.FOREGROUND_SERVICE_SPECIAL_USE` - `android.permission.HIGH_SAMPLING_RATE_SENSORS` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.RECORD_AUDIO` - `android.permission.SYSTEM_ALERT_WINDOW` - `android.permission.USE_EXACT_ALARM` - `android.permission.USE_FULL_SCREEN_INTENT` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `android.permission.health.READ_HEIGHT` - `android.permission.health.READ_STEPS` - `android.permission.health.READ_WEIGHT` - `android.permission.health.WRITE_SLEEP` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.ACTIVITY_RECOGNITION` - `com.google.android.gms.permission.AD_ID` - `com.google.android.providers.gsf.permission.READ_GSERVICES` - `com.northcube.sleepcycle.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Review summary Users praise the app for solid sleep tracking and an effective smart alarm when accessible, and note its long-running reliability. However, widespread paywalls locking core features, intrusive ads, and occasional tracking inaccuracies drive dissatisfaction and uninstallations. ### Pros - Good sleep tracking accuracy and a neat sleep tracker - Smart alarm can wake you up smoothly and effectively when the feature is accessible - Longstanding app with many users using it for years (over a decade) ### Cons - Smart alarm and other core features are locked behind a paid subscription/paywall, causing dissatisfaction and uninstallations - Intrusive ads and notification ads, especially affecting free users - Inconsistent sleep tracking accuracy (misreads wake times or time to fall asleep) - Recent updates reduced free functionality (e.g., removing wake windows) leading to frustration ## Similar extensions and apps - [Sleep Cycle: Smart Alarm Clock](https://chrome-stats.com/d/com.sleeptracker.sleep.pattern.monitor) — 649,696 users, 4.43 / 5 - [Sleep Tracker: Sleep Cycle](https://chrome-stats.com/d/com.sleep.snore.insomnia) — 681,595 users, 4.31 / 5 - [Sleep Tracker : Slumber Cycle](https://chrome-stats.com/d/sleeptracker.slumbercycle.mediation) — 347 users - [Sleep Cycle - Sleep Tracker](https://chrome-stats.com/d/com.sleep.monitoring.sleepcycle.sleepmonito) — 1,745,109 users, 3.51 / 5 - [Sleep Tracker and Sleep Cycle](https://chrome-stats.com/d/com.sleep.sleeptracker.sleeprecorder.sleepcycle) — 335,873 users, 3.30 / 5 - [Sleep Tracker - Sleep Cycle](https://chrome-stats.com/d/easy.sleep.tracker2) — 88,142 users, 3.79 / 5 - [Sleep Tracker & Recorder: Yawn](https://chrome-stats.com/d/sleeptrakcer.sleeprecorder.sleepapp.sleep) — 8,145,799 users, 4.56 / 5 - [Sleep Tracker - Smart Alarm](https://chrome-stats.com/d/com.sleeptracker.night.pattern.tracker) — 760,513 users, 4.10 / 5 - [Sleep Sounds - Smart Alarm](https://chrome-stats.com/d/com.night.sleeptracker.health.monitor) — 3,767,976 users, 2.84 / 5 - [Sleep Cycle Health Monitor](https://chrome-stats.com/d/xyz.appmaker.nxnbks) - [Sleep Tracker & Alarm - Moonap](https://chrome-stats.com/d/com.sleep.sleeptracker.sleepsounds.sleepcycle) — 101,767 users, 4.29 / 5 - [Sleep Patterns: Sleep Cycle](https://chrome-stats.com/d/com.hlfdev.sleep_patterns_flutter) — 74 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.northcube.sleepcycle)