Sleep Gem: Baby Sleep Tracker
Wake Windows & Nap Schedule
Free · Designed for iPad. Not verified for macOS.
Sleep Gem learns your baby's ideal wake windows from what you log and tells you when to put them down. Free, no subscription. Now with a plain-language morning briefing.
Sleep Gem is the baby sleep tracker that learns your baby's own wake windows and tells you when to put them down. No generic age chart: every nap you log tunes your baby's schedule, so naps get longer and nights get calmer.
Built by a father of three in Singapore and refined over five years and hundreds of thousands of logged days.
HOW IT WORKS
1. Log with two taps: Wake Up, Put Down, Sleep, Pick Up.
2. Sleep Gem works out your baby's wake windows from what you log and shows the next put-down time.
3. AutoOptimise keeps adjusting the nap schedule and bedtime as your baby grows, through nap transitions, sleep regressions and sick days.
WHAT YOU GET
• The next put-down time, always on screen, with a "Why this time?" explanation
• A nap and bedtime schedule that is your baby's, not an average
• Night sleep, night wakings and total sleep charts over 15 to 90 days
• A plain-language morning briefing on how last night went
• Mark an unwell day and the schedule adapts instead of breaking
• Beginner or Advanced logging: start simple, add awake-in-crib time when you are ready
• One shared log for both parents, your helper or grandparents, updated live
• Edit, insert and undo entries, with a roller time picker for exact times
• Dark mode for 3 a.m.
• Care log (feeds, diapers) and WHO growth charts
• English, 中文 and Bahasa Indonesia
WHO IT IS FOR
Newborns, infants and toddlers up to about three years. Especially useful if you are:
• A first-time parent guessing when the next nap should be
• Working through the 4-month sleep regression or a 2-to-1 nap transition
• Sharing care with a partner, helper, nanny, daycare or grandparents
• Planning to sleep train and want a solid routine first
FREE
Sleep Gem is free. No subscription, no paywall, every feature included. Start as a guest, no account needed.
WHAT PARENTS SAY
"Lifesaver for parents who manually calculate and record wake times. No need to calculate wake times anymore." (App Store review, Singapore)
"It helps to relieve our mental load for calculating when's the next nap." (App Store review, Singapore)
Questions or ideas? hello@sleepgem.app
More at sleepgem.app
Ratings & Reviews
Sleep Gem now learns your baby's wake windows faster and explains last night in plain language.
• Morning briefing: how the night went and what to try today
• AutoOptimise: wake windows keep adjusting as your baby grows
• Care log and WHO growth charts
• 中文 and Bahasa Indonesia
• Edit, insert and undo any entry
Loving Sleep Gem? A rating helps other tired parents find it.
The developer, Hyperdrive Technologies Pte. Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hyperdrive Technologies Pte. Ltd.
- Size
- 107.5 MB
- Category
- Medical
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2021-2026 HyperDrive Technologies Pte. Ltd.