A white noise is a mix of pitches of sounds blended together.

Like waves, the rain and other nature sounds, it could be used as a tool to calm and boost the quality of sleep.

The baby starts to hear sounds from the womb. The noises are being "filtered" by the womb itself and the amniotic fluid around your baby and keep the low rumble sounds.

Baby doesn't understand why we put him down with no interaction in the dark. But after using white noises, they will get used to listening to some high pitches, and in a few weeks time, your baby will connect these sounds with the pleasure of sleep.

And even if babies sleep well, a white noise makes sleep even better. And it helps to prevent the crazy nights between four and twelve months. He will also, be able to sleep even if you're talking or hears the traffic...

Noises are like an ID card for babies.

Of course, it will help you, unless if you are using white noise all day long. White noise has to be a trigger, the signal in your infant's routine to connect with quiet time, having a snooze. Hearing the normal home sounds, helps your baby to be interested and curious. He will get used to the voices around him and hearing some music.

There are actually two types of white noise: High pitch and Low pitch.

Depending what you are listening to, these noises may have different effects, especially with young ones.

High-pitch white noise is hissy, alarms, sirens, screams... These sounds can help for getting attention (and calming baby crying), but they aren't good for sleeping. So when you shush your child, this sound is just to get his attention. Let him know you are here. But it actually doesn't help him to sleep...

And low-pitch noise is kind of hypnotic, like the rumbling sound of the car, heavy drops falling on the roof. In your child's brain, it's like if, while listening, the brain is expecting a high pitch noise at any moment. Our brain and ears need both types of noises to find some kind of balance. And by keeping your attention to that low-pitch sound, you're kind of entering into a boring spiral...and then...

Zzzz!

It is believed, (but not proven), that continuous sounds, like your hairdryer, are more effective than nature sounds. Nature sounds are unexpected and have breaks, which may wake your baby's attention.

So, if you are using a white noise machine, it might work. Some can recreate a close low frequency, like when "baby" was in the womb, and they can play continuously. But, know something, those machines can't recreate an exact and equally rumbly noise.

Your turn now...

Try different noises that you can handle and try it on your baby. It usually takes 3 weeks. Time to find the right sound, to use it, and to put it in the routine, before you see how it works.

And some babies enjoy those sounds immediately and fall asleep within 10 minutes.

Zzzzzzz...