Why it's good for your baby.
It creates a sound curtain
Think of the sound of an untuned TV or radio, that is what is known as white noise. It is comprised of sounds from the entire range of frequencies audible to the human ear at the same intensity [1]. It creates what is referred to as a sound wall.
It improves sleep by blocking out sudden sounds
Harsh and sudden sounds such as a dog barking, a car horn, or a wailing siren are likely to interrupt sleep [2]. White noise creates a kind of audio cocoon, that can buffer the volume of the surrounding world, improving sleep quality in both adults and children.
Helps put the baby to sleep quickly
There are many situations in which a child can find it difficult to settle down and fall asleep. If your baby missed their usual bedtime, workers are noisily fixing the road outside, or even if the room is hotter than usual, white noise can be very helpful. Most babies fall asleep after just five minutes of listening to it [3].
The low-frequency version of white noise (pink noise) can help with deeper sleep
Pink noise is similar to white noise. The difference is that its low frequencies are more intense than its higher ones. The sound is deep and dense, like the sound of a waterfall. Studies show that pink noise promotes deeper sleep [4], which increases the chance of your baby waking up cheerful and alert the next day.
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