White Noise for Babies
White noise mimics the muffled whoosh babies hear in the womb, which is why it can be so soothing at nap and bedtime. Soundlull generates it live — start it below, keep the volume moderate, and place the device a few feet from the crib rather than right beside it.
White, brown & pink noise generate real audio in your browser. Loop-based channels play once their audio files are added.
Frequently asked questions
Is white noise safe for babies?
White noise is widely used to help babies sleep by mimicking the muffled sounds of the womb. Pediatric guidance generally suggests keeping the volume moderate and the device a few feet from the crib rather than right next to it. When in doubt, check with your pediatrician.
What is white noise?
White noise contains equal energy at every audible frequency, producing a flat, steady hiss similar to an untuned radio or a hair dryer. That even spread is what makes it effective at masking sudden noises.
Can I leave Soundlull playing all night?
Yes. Sounds loop seamlessly and will keep playing as long as the tab is open. If you'd rather it stop on its own, use the sleep timer to fade everything out after 15, 30, or 60 minutes.