White noise is an audio signal that consists of a series of tones or frequencies. The sound is usually very low-pitched and comes from a source such as a motor or a fan. It is used to mask other sounds. White noise is often used to help the sleeping child to fall asleep. It is used to help the baby to sleep through the night.

How can white noise help the sleeping child?

In babies, the brain does not differentiate between sounds. A baby will hear all the sounds in the room and will not be able to sleep unless one of the noises is blocked. When the child is asleep, the brain receives less sensory information. This allows the child to sleep more easily and deeply. The low-pitched tones in white noise make the child feel secure and calm.