Sound player
White Noise Player for Better Sleep
Choose a sound, start quietly and set a stopping time. These are original synthesized loops, not recordings or a promise of better sleep.
Selected sound
Womb Sounds
Low filtered rumble inspired by womb-like noise.
Start low. This percentage is a device control, not a decibel measurement. Some phones use their physical volume buttons instead.
Start playback to enable the timer.
Choose a sound
Using sound thoughtfully
Sound is optional. The American Academy of Pediatrics advises keeping a sleep machine as far from a baby’s head as possible and using it for a short time. Use a low setting and stop if the sound is unwanted. This player cannot measure the sound reaching your baby.
Read the AAP guidance on noise and children
Can I leave it running all night?
This page does not promise that continuous use is safe. Use the timer for a limited session. Volume, distance and duration all matter; a percentage on a screen cannot establish safe exposure.
Will it keep playing with my phone locked?
Your browser and operating system may pause playback or suspend this page. Keep it open when you need predictable controls. The timer checks elapsed time when the page resumes; it cannot control playback while the operating system has suspended it.
Which sound should I choose?
Choose a quiet sound you find comfortable, or choose silence. None of these loops is claimed to work best for a particular age. The labels describe their character; nature and instrument sounds are synthesized.