# Sleepa - The Science of Sleep — AI sleep analysis & diary > AI sleep analysis & diary (iPhone/iPad app by Medisense, Inc..) - Source: https://appshunter.io/ios/app/sleepa-the-science-of-sleep/id6747469873 (this page in markdown: same URL + `.md`) - Developer: [Medisense, Inc.](https://appshunter.io/developer/1821601924) - Category: Medical, Health & Fitness - Price: Free with in-app purchases - Age rating: 17+ - Requires: iOS 26.0 · 60 MB - Languages: American English, Japanese - Released: 2025-11-04 - Data updated: 2026-08-15 - User reviews in markdown: https://appshunter.io/ios/app/sleepa-the-science-of-sleep/id6747469873/reviews.md ## What is Sleepa? "I'm not sleeping." — Are you sure? Let's check the data. Sleepa measures your sleep with Apple Watch, then uses AI to explain what is actually happening, in plain language. Developed with guidance from a sleep medicine specialist. ◉ AI ANALYZES YOUR SLEEP One tap analyzes your last 30 days and explains the findings in clear, readable language. • Breathing patterns — Reviews overnight blood oxygen levels and breathing events detected by Apple Watch • Insomnia patterns — Evaluates sleep duration, time taken to fall asleep, and night wakings against established clinical criteria • Compared to your own normal — Not against other people, but against your own baseline over time You do not need to interpret graphs or numbers. Sleepa tells you things like "You have been sleeping less than usual lately." Read-aloud is supported, so you can listen instead. Have a question? Ask the AI directly. "Why does this say caution?" "What should I do?" It answers based on your own results. Every night also receives a sleep score from 0 to 100, calculated from duration, efficiency, sleep depth, breathing stability, and how often you woke up. ※ All analysis runs entirely on your iPhone. Your sleep data is never sent to an external server. ◉ REVEALING SLEEP STATE MISPERCEPTION Even when you feel you are not sleeping, you may in fact be sleeping. This is known as sleep state misperception, and in these cases the problem is not a lack of sleep. The first step is to confirm objectively whether you are truly sleeping or not. Sleepa's sleep diary records how you felt you slept, hour by hour, and displays it alongside what Apple Watch actually measured. The gap between the two is the key to identifying sleep state misperception. Sleep can also feel insufficient even when its duration is adequate, if it lacks depth. Sleepa breaks your night into REM, Core, Deep, and Awake so you can see whether you are getting genuinely deep sleep. Over time, patterns emerge — the nights you feel rested, and the nights you do not. ◉ AN ALARM THAT ACTUALLY WAKES YOU Sleepa includes a powerful alarm. • Sounds reliably even in Silent Mode and Focus Mode • With snooze enabled, it repeats for up to 30 minutes until you press stop • Use your own audio files (.mp3 / .wav) as your alarm sound If you need to be certain you will wake up, this is for you. ◉ HOW TO USE SLEEPA 1. Set your alarm • Like the built-in Clock app, it sounds in Focus Mode and Silent Mode • Use your own audio files (.mp3 / .wav) • Choose your snooze interval 2. Wear your Apple Watch to bed • That is all it takes to measure your sleep 3. Check your sleep graph and score • See the night at a glance with your graph and 0–100 score 4. Write your sleep diary • Record how you felt you slept • Compare it with the measured data. A large gap may indicate sleep state misperception 5. Let the AI analyze • Tap "Analyze Sleep" for a summary of your last 30 days • Ask follow-up questions right there ◉ FEATURES • AI sleep analysis and summary • Ask the AI (chat) • Sleep score (0–100) • Sleep graph • Sleep statistics • Sleep diary • Powerful alarm clock • Alerts ◉ PRICING Sleepa is free for one week after installation, with full access to all features. After that, subscribe to Sleepa Premium, or Sleepa Limited, a three-month subscription plan. Both include every feature. ◉ BEFORE YOU BEGIN ※ An Apple Watch is required to use Sleepa. ※ Sleep measurement uses Apple HealthKit. ※ AI written summaries and chat require a device that supports Apple Intelligence. On other devices, results are shown using standard text. ※ The analysis Sleepa provides is reference information to help you understand your own sleep tendencies. Sleepa is not a medical device and does not provide medical diagnosis. If you have concerns about your health, please consult a medical professional. ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Sleepa Premium | $1.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Sleepa Limited | $2.99 | one-time | ## Version history (last 5 releases) ### 1.5.0 — 2026-08-12 NEW: AI Sleep Analysis • AI analyzes your sleep Sleepa now reviews your last 30 days and explains breathing patterns, insomnia patterns, and how you compare to your own normal, all in plain language. No need to interpret graphs or numbers. • Ask the AI Have a question about your results? Ask right away and get an answer based on your own data. • Read aloud Listen to your analysis instead of reading it. The text highlights as it is read. • Sleep score Every night now receives a score out of 100, calculated from duration, efficiency, sleep depth, breathing stability, and how often you woke up. Note: All analysis runs entirely on your iPhone. Your sleep data is never sent to an external server. Note: Written summaries and chat require a device that supports Apple Intelligence. On other devices, results are shown using standard text. IMPROVEMENTS AND FIXES • Fixed an issue where hours you had not entered in the sleep diary appeared as awake • Fixed an issue where restoring a purchase did not always complete correctly • Fixed an issue that could cause the app to stop responding during sleep analysis • General stability improvements ### 1.4.0 — 2026-06-09 ◉ver.1.4.0 - We have introduced a sleep scoring system based on our own proprietary algorithm. - Minor bugs have been fixed. ### 1.3.0 — 2026-03-02 ◉ver. 1.3.0 - some minor bugs are fixed. ### 1.2.1 — 2026-02-02 ◉ver. 1.2.1 - Some minor bugs are fixed. ### 1.2.0 — 2026-01-23 ◉ver. 1.2.0 ■ New alarm feature added ■ - The alarm will ring reliably even in silent or sleep mode. - The alarm can be set to a user-defined audio file. - A snooze function has been implemented, allowing the alarm to ring repeatedly for up to 30 minutes until the stop button is pressed. ## Related topics [sleep science](https://appshunter.io/ios/topics/sleep-science) · [sleep image ring](https://appshunter.io/ios/topics/sleep-image-ring) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*