White Noise for Baby Sleep

Before you press play

NoiseMoon is not medical advice, and there is no universal volume or distance number we can promise is right for your child. Two habits are still worth adopting:

• Use the lowest comfortable level. Quieter than you'd probably guess — the sound only needs to soften other noises, not dominate the room.
• Keep the device away from the baby rather than next to them.

For individualized guidance on volume, placement, and whether sleep sound makes sense for your child at all, ask a pediatrician or care team.

Why pink instead of pure white

Pure white noise (flat across the spectrum, 0 dB/oct) sounds bright and hissy. Pink noise rolls off at −3 dB/oct, putting more of the energy lower; it sounds more like a steady rain or distant waterfall, and many parents find it softer. No noise color is universally better — this is a comfort choice, not a clinical one.

Brown noise (−6 dB/oct) is darker still — deep, low rumble. Try each at a low level. The "right" choice is whichever your family finds most comfortable.

How to set it up

1. Place your phone or computer away from the baby — across the room, not bedside.
2. Press play. Pink is selected by default.
3. Set the volume to the lowest level that feels comfortable. It only needs to soften other sounds, not fill the room.
4. Use the warm ↔ bright slider to taste. Most parents prefer it slightly warm for overnight.
5. Add NoiseMoon to your home screen (your phone will prompt you). Tomorrow night you can launch it in one tap, no opening a browser.

An external Bluetooth speaker placed across the room often works better than the phone's own speaker — you can keep the phone with you while the noise plays consistently from one location.

What NoiseMoon does and doesn't do

What it does: generates continuous broadband sound on your device with no loop seam, lets you shape the tone with the warm ↔ bright slider, and fades out on a timer so there's no abrupt stop. What it doesn't do: treat, diagnose, or improve anything. It's a sound generator, not a sleep solution, and whether your baby settles more easily with it is something only your family can observe.

NoiseMoon is not medical advice. If you have questions about infant sleep or hearing, ask a pediatrician or care team.

What about leaving it on all night?

That's a call for you and your pediatrician, not for us. Some families run sound all night; others prefer to fade it out after the baby is asleep. NoiseMoon's sleep timer (the no zzz button) lets you set a fade duration; the noise gradually quiets to silence over the timer window so there's no abrupt stop.

One practical habit: pick your volume once, during the day, at a level you know is low — rather than nudging it up in the middle of the night and forgetting to bring it back down.