Black screen, white noise still playing
Start Underwater White Noise, choose Black Screen and leave only a quiet black surface while the web timer continues.
Underwater white noise · black screen · no ads
White noise with a black screen for sleep.
Play underwater white noise with a black screen, no music, talking, account or ads. Start the real Yixiu scene free, choose a 15, 30 or 60-minute timer, then cover the open page while the sound keeps playing. For physical iPhone lock-screen playback, continue in Yixiu.
Play the white noise first, then choose Black Screen. The browser black-screen mode covers this open page while the white noise and timer keep running. For physical iPhone lock-screen playback, continue in Yixiu.
Sleep preview timer30:00 remaining
Free online · Black-screen mode · No account · No ads
Want the sound to continue after the screen goes dark? Continue in Yixiu for iPhone.
One real Yixiu scene
The free preview uses the same first-party underwater white-noise audio available in Yixiu rather than a silent illustration or music bed.
No music or talking
There are no lyrics, melodies, stories or spoken prompts waiting for your attention.
A lower, steadier setup
Let the sound soften the room, not fill it
White noise is not a promise of better sleep. Use it as a background choice, keep the level modest and stop if it feels tiring or intrusive.
- 01
Start quieter than you expect
Begin at the lowest comfortable volume and place the speaker away from your head. The texture should sit behind the room rather than become the center of it.
- 02
Listen before you settle down
Give the preview a minute. If the low texture feels heavy or distracting, choose rain, wind or silence instead.
- 03
Set one ending
Use a 15-, 30- or 60-minute timer in Yixiu. Evidence on white noise and sleep is mixed, so longer is not automatically better. Read Harvard Health's overview.
Choose by texture
Underwater white noise, rain or distant thunder?
There is no universal sleep sound. Choose the texture that asks the least of your attention tonight.
- 01
Underwater white noise for a low, steady layer
Choose it when you want fewer distinct details and a deeper, more muffled texture.
- 02
Window rain for a lighter surface
If the underwater texture feels too dense, try the more familiar movement of rain sounds for sleep.
- 03
Distant thunder for slow changes
Choose distant thunder and light rain when occasional low rumbles feel more natural than an even layer.
Before you press play
Black-screen white noise: common questions
Are these black-screen white noise sounds free and ad-free?
Yes. Start the free Underwater White Noise player with no account or ads, then choose Black Screen to cover the open page while the timer keeps running. Tap or press Escape to return. For physical iPhone lock-screen playback, continue in Yixiu.
Does the underwater white-noise preview include music or talking?
No. The preview contains the underwater ambient texture without music, lyrics, narration or spoken sleep guidance.
Should white noise play all night?
Evidence about white noise and sleep is mixed. Keep the volume low, place the speaker away from your head and consider a 15, 30 or 60 minute timer instead of assuming that longer is better.
Can underwater white noise keep playing after I lock my iPhone?
Yes. With background playback enabled in Yixiu, the selected scene can continue when you lock the screen or leave the app. You can also set a 15, 30 or 60 minute timer.