Sun to Moon Sleep Clock is a gentle sleep trainer that helps toddlers and young children learn when they should stay in bed and when it’s okay to wake up.
Throughout the night, 26 stars fade away one by one, giving kids a simple visual countdown until morning. The app is quick to set up, fully customizable, and packed with optional sleep sounds, wake-up sounds, nap timers, and bedtime-routine tools.

Kids can personalize the friendly Sun and Moon characters with outfits and accessories from their shops. Everything is unlocked from the start, but you can enable the optional Snooze Rewards system to encourage positive sleep habits. The longer kids stay in bed, the more Snooze Coins they earn — which can then be exchanged for fun gifts for Sun and Moon.

Wake-up times can be adjusted in Settings or by tapping the orange digit buttons on the main daytime screen. Tapping Goodnight triggers an instant sunset at bedtime.
Need an early wake-up for a nap or a schedule change? Tap Moon’s nose three times to trigger an out-of-schedule sunrise — and three more times for an immediate sunrise.

📘 Full instructions: https://www.msibley.com/sleep-clock
💡 Updates & tips: https://www.facebook.com/suntomoonsleepclock

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⭐ Key Features

• Simple sleep training with a visual star countdown
• Soothing sleep sounds: fan, white noise (hair dryer), waves, heartbeat, whale song, and more — or silence
• Fun wake-up sounds: birdsong, digital alarm, drums, rooster, Happy Birthday, Santa/Jingle Bells, and more — or silence
• 7-day schedule (optional) for flexible routines
• Digital or analog clock styles, including a large-digit mode
• Speaking Clock: tap Sun or Moon’s mouth to hear the time (optional)
• Outfits and accessories to personalize each character
• Themes: Birthday, Christmas, Easter, Halloween, St. Patrick’s Day, Pirates, Sports, and Space
• Snooze Rewards system using collectible Snooze Coins (optional)
• Shooting-star progress bar for nighttime reassurance
• Final Countdown mode: a faster 12-star countdown before wake-up time (optional)
• Reading Time: Moon reads for up to an hour at sunrise or sunset
• Nose-Tap Naps: set a nap duration and activate with three taps
• Immediate Sunrise: trigger instantly with three additional taps
• Morning Memo: write a message for your child; Sun can read it aloud (optional)
• Dim & Auto-Dim options to reduce screen brightness
• Dark Mode for softer nighttime colors
• Helpful built-in guidance throughout the app
• Multilingual support: English, German, Spanish, French, Italian, Dutch, Portuguese, Simplified Chinese, Japanese, and Korean
• PIN-protected settings with biometric unlock (master code: 8529)
• Dreamy illustrations by artist Michael Sibley

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💡 Helpful Notes

• To disable device buttons while using the app, use Android Screen Pinning
• Keep your device plugged in overnight
• Lower the screen brightness or enable Auto-Dim for long nighttime use
• If you forget your PIN, the master code is 8529

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🌙 If You Find the App Helpful…

A rating or review on the Play Store helps us continue improving Sun to Moon.
Thank you for your support — and sweet dreams!