Clozzz: Sleep Sounds & Music
Sleep, Music & White Noise
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Lab-tested sleep music & white noise—personalized to you and gently evolving as you drift off. Sleep like a baby again. Lullabies made just for you.
Sleep like a baby again. Lab-tested, science-backed lullabies made just for you.
Clozzz is an intelligent sleep-aid app that brings together sleep music, modern lullabies, and white noise — personalized to you, and gently evolving as you drift off. Every track is lab-tested and supported by our team's peer-reviewed research, published in top-tier academic journals and conferences.
— Inspired by the Most Effective Lullaby Ever —
The way a mother gently rocks, hums, and quietly fades her voice until a child falls asleep is one of the most effective sleep rituals ever discovered. Two things make it work: it's deeply personal, and it slowly transforms — softer, slower, calmer.
Clozzz is built on that exact logic. Your audio is matched to you, then gradually evolves as you drift off — guiding you into sleep without ever jarring you awake.
— Tailor-Made for You —
No two sleepers are alike. Clozzz uses affective computing to recommend audio based on your personal sound and music preferences — and the specific factors keeping you up at night, from stress and anxiety to noise, lifestyle, and hormones. It's a world away from random tracks or generic white noise.
— Built on Real Science and Lab-Test —
Developed by a team of neuroscience and cognitive-computing scientists, Clozzz is grounded in research on sleep, sound, and the human nervous system — and refined through careful, real-world testing. Behind every track is a blend of music therapy, white noise engineering, and modern acoustic technology.
— Slow, Gentle, Personal —
A signature gradual fade: your soundscape doesn't just play — it slowly drifts with you, adjusting tempo, brightness, and intensity in subtle steps. You won't notice it happening. You'll just notice you're asleep.
— Simple to Use —
One tap starts it. Sleep timers, loops, and gentle fades handle the rest. No clutter. No decision fatigue. Just rest.
Whether you're winding down after a long day, fighting insomnia, calming anxiety, or simply hoping for a quieter, deeper night — Clozzz is the lullaby made for you.
Sleep like a baby again.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Stale CDN link rekey playback bug fix.
- More precise frontend playback error codes and logging.
- Improved user-facing status and error modals.
- Feedback reward implemented in Android.
- Tablet UI improvements.
- New subscription confirmation/expiry modals.
- Improved locale strings.
The developer, DreamTune Limited, 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:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Sensitive Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- DreamTune Limited
- Size
- 40.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- In-App Purchases
Yes
- Annual Subscription $49.99
- Monthly Plan $3.99
- Copyright
- © 2026 Biaohan Limited