
Sleep Island · Official
Pure White Noise
Free white noise online: equal energy across the spectrum, bright and steady, looping seamlessly all night. Covers voices and typing and helps you focus.
Sleep, Noise Masking, Focus
Synthesized by Sleep Island as a seamless 3-minute loop.
White noise carries equal energy at every frequency, the “shhh” of TV static or a fan on high. It is best at covering mid- and high-pitched sudden sounds such as voices, typing or a door closing, because they get lost in the steady wash.
If it feels a little harsh, switch to Soft Pink Noise; for a deeper sound like distant surf, try Brown Noise. This track is synthesized by Sleep Island as a seamless three-minute loop that plays continuously in your browser, and the timer can stop it after you fall asleep.
The web player loops the current preview audio. Choose a timer from 15 minutes to 2 hours, or keep it looping; timed playback fades out gently. The timer sets your listening session, not the original track length.


