YOYO Sleep Sounds

YOYO Sleep Sounds is a cute, lightweight sleep sounds and white noise mixer for Android.

Build a calm bedtime scene with rain, noise, ocean, wind, room tones, focus sounds, and simple preset mixes. Start a timer, fade out playback, save favorite mixes, and control your recent session from the app, notification, or home-screen widget.

What you can do:

- Play sleep sounds, white noise, rain, ocean, wind, room, focus, and baby-friendly sound packs
- Combine multiple sounds into one custom mix
- Use preset sessions such as Quick Sleep, Deep Sleep, Nap 30, Focus Study, Meditation, and Baby Sleep
- Set sleep timers and fade-stop durations
- Save and reload favorite mixes
- Use playback controls from the foreground notification and home-screen widget
- Switch between English, Japanese, and Simplified Chinese in the app
- Restore Pro access through Google Play Billing

Free users can use the core sleep sound mixer with ads and free limits. Pro removes ads and unlocks the full sound library, unlimited saved mixes, advanced timers, fade stop, widget features, and extra sound packs.

YOYO Sleep Sounds is local-first. It does not require an account, does not request microphone access, does not record audio, and does not listen to your environment. Saved mixes, favorites, timers, and playback choices stay on your device. Ads are provided through Google AdMob and privacy choices are handled through Google's consent tools where required. Purchases are processed by Google Play.

YOYO Sleep Sounds is not a medical device, sleep diagnosis service, mental health treatment, or emergency service. Please use a comfortable volume and choose a timer that fits your environment.