SleepSheep: Sleep Tracker
ET CETERA (Japan) Health & Fitness iPhoneiPadiPod touch
SleepSheep: Sleep Tracker is a free Health & Fitness app for iPhone and iPad by ET CETERA (Japan). Requires iOS 13.0. Updated September 18, 2026.
- Price
- Free
- on the App Store
- Size
- 95 MB
- Age 4+
- Updated
- Sep 18
- 2026 · v1.3.0
Screenshots
About SleepSheep: Sleep Tracker
SleepSheep brings your wind-down routine, overnight tracking, and morning look-back together in one app. ■ Two tracking modes Quick Tracking simply records when you went to bed and when you woke up. Detailed Tracking automatically detects snoring, coughing, sleep talking, and movement while you sleep. Just set your phone by your pillow. ■ See your nights as data Each night is charted, with comments based on your own records. Review how your sleep depth shifted and when snoring came up. There is no limit on how long your records are kept. ■ Keeps working with the screen off Detailed Tracking and BGM keep running with the screen off, and your lock screen shows tracking in progress. * BGM is unavailable while Detailed Tracking is running. ■ Sounds for winding down Rain, waves, a crackling fire and more, with a sleep timer so it stops on its own. ■ Three-Line Diary Before bed, write one line each for what didn't go well, what did, and a goal for tomorrow. Your goal appears on the home screen the next day. Picking a tag is enough if you'd rather not type. ■ Collect sheep Keep recording to earn Moon Fragments and draw the Dream Gacha. New sheep and rooms are added to your collection over time. Only items you don't own yet can come out, so you'll never get a duplicate. ■ About in-app purchases Moon Fragments are earned by opening the app each day, recording your sleep, writing your diary, or watching an ad. If you'd rather not wait, you can also buy them in the app - this is entirely optional. You can collect every sheep and room without spending anything. ■ Before you start - This app is not a medical device. Do not use it for diagnosis or treatment; consult a doctor. - Sleep data is stored only on your device and is never sent externally. - Audio is analyzed on your device only, and is neither saved nor transmitted. - Your device may become warm during tracking. Do not place it under bedding or a pillow. Use it on a stable, well-ventilated surface, ideally while charging. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.3.0 · Updated September 18, 2026
The Premium Plan has ended - Every feature that used to be paid is now available to everyone - The one-week limit on sleep history is gone. Look back on any night, any time - Removed the ad shown before Detailed Tracking starts - Removed the daily cap on watching ads for points Moon Fragments can now be purchased - You can still earn them by recording sleep or watching ads. Buying is simply a shortcut - The Dream Gacha only gives out items you don't own yet Improvements - You can now choose whether to see the walkthrough when you start - Your sheep has more to say on the home screen, including about rooms and friends - Tracking in progress is now visible from other screens too - Screens and dialogs now open and close consistently - Adjusted the home screen logo and heading sizes
App privacy
The developer, ET CETERA (Japan), reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Advertising Data
Used for: Third-Party Advertising