Why do babies sleep better with white noise than silence?

Babies often sleep better with white noise for a few simple reasons:

• It provides a steady, predictable sound that can be soothing.
• It helps mask sudden noises like doors closing, voices, or a barking dog that might otherwise wake or startle them.
• If you use it consistently, it can become a sleep cue your baby associates with bedtime.

A quick safety note: keep the volume low and place the machine well away from the crib. As a practical rule, aim for no louder than soft background sound, and follow the device’s instructions and your pediatrician’s guidance. Exact safety recommendations can vary, so it’s a good idea to check current guidance from a reliable medical source.