White noise
Bright and even across frequencies. Try it for broad background masking.
Compare the colors →White noise, your way
Make room for quiet.
Free white, pink and brown noise. Mix your own bedtime background right in the browser.
Start at the lowest comfortable level. The slider cannot measure sound level at your bed.
01 / White noise
Ready to play
Generated on this device. No recording or upload. Keep the tab open; browser background playback can vary by device.
SleepMix for iPhone
Build a personal mix from 50+ sounds, save it, then return to it when bedtime comes around.
Get the app ↗Choose a texture
Which sound should you try?
Pink noise
Softer at high frequencies. Try it when white noise feels too sharp.
Read about pink noise →Brown noise
Deep and low. A larger speaker may reproduce this texture better.
Read about brown noise →Good to know
Sound can mask interruptions. It cannot promise sleep.
Start at the lowest comfortable volume. A browser volume slider cannot tell you the actual sound pressure level in a room; speaker, distance and device settings all matter.
For a baby, the American Academy of Pediatrics recommends placing a sound machine as far away as possible, using the lowest possible volume and limiting duration.
Read the guides →