Nemudoki - Baby Sleep Timing
Jin Okawa Health & Fitness iPhoneiPadiPod touch
Nemudoki - Baby Sleep Timing is a free Health & Fitness app for iPhone and iPad by Jin Okawa. Requires iOS 18.0. Updated October 22, 2026.
- Price
- Free
- on the App Store
- Size
- 35 MB
- Age 4+
- Updated
- Oct 22
- 2026 · v1.0.2
Screenshots
About Nemudoki - Baby Sleep Timing
Thirty minutes. An hour. Still not asleep. The reason may be when you start. A baby who stays awake too long becomes overtired and fights sleep even harder — and starting too early doesn't work either. Nemudoki uses your baby's age and your own records to show when the next sleep window is likely to open. Recording takes one tap: asleep, or awake. Open the app and today's sleep is already there. ● One tap to record Tap "asleep" and "awake." That's all. There are no forms to fill in. The home screen shows today's sleep and what's predicted next. ● Know before it's too late A notification arrives before naps and bedtime. If you've forgotten to record something, Nemudoki lets you know quietly. ● It follows your baby's rhythm It starts from what's typical for your baby's age, then adjusts as your records build up. ● Look back See how total sleep, wake times, and bedtimes have shifted, week by week or month by month. You can go back through past periods to trace how the rhythm has changed. ● Sounds for settling Rain, waves, a campfire, a heartbeat, womb sounds, and many more. ● Your records stay on your device No account is required. Your child's sleep records never leave your phone. ● Who it's for Children from newborn to around three years old. Predictions don't appear before four months, since sleep rhythms haven't settled yet — recording and the sleep history are still available. ● Premium All features are free for 14 days from install, with no purchase required. Monthly and yearly subscriptions are available; prices are shown in the app. Recording, sleep history, multiple children, and reminders for missed records remain free after the trial. Premium adds the next sleep prediction, prediction-based notifications, the summary screen, and every settling sound. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel anytime in your App Store settings. Nemudoki is not a medical device. Times shown are estimates. Talk to a doctor about your child's health. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Nemudoki Terms of Service: https://nemudoki.com/en/terms Privacy Policy: https://nemudoki.com/en/privacy
What’s new
Version 1.0.2 · Updated October 22, 2026
Improved subscription status updates and guidance for notification settings. Made wake-up recording clearer and fixed minor issues.
App privacy
The developer, Jin Okawa, reported these privacy practices to Apple.
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:
- Purchases: Purchase History
- Identifiers: Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data
Used for: Analytics, App Functionality
Alternatives to Nemudoki - Baby Sleep Timing
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Nemudoki - Baby Sleep Timing | – | Free | October 22, 2026 | |
| オシベビ - 我が子の推し活アプリ 育児日記・記録 | – | Free | Sep 3, 2026 | Compare |
| MoodPalz: Mood Tracker | – | Free | Sep 27, 2026 | Compare |
| Baby Sleep Sounds White Noises | – | Free | Oct 7, 2026 | Compare |
| Baby Sleep Log – Sleepie | – | Free | Aug 18, 2025 | Compare |
| Shif. - Nurse Shift Calendar | – | Free | Oct 23, 2026 | Compare |
| ほぐし屋 按術 | – | Free | Mar 11, 2024 | Compare |