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How to Use White Noise to Get Babies to Sleep

Not every baby will need a white noise machine, but for those that do, safety should come first.

White noise baby sleep can often be the most peaceful baby sleep. White noise for sleep helps babies, children (and parents) get through the night even if they’ve yet to master baby sleep itself. That’s because white noise can condition babies into a sense of drowsiness. White noise is particularly effective at eliciting a Pavlovian reaction, which is why white noise baby machines are so popular among parents struggling to get some rest. But not all white noise machines are created equal.

“Any time you bring any sort of thing into your baby’s environment, you need to make sure it’s safe,” explains Elizabeth Murray, M.D., a pediatric emergency physician. “We don’t necessarily think of white noise as being loud, but some of those machines can be very loud.”

Recent studies have suggested that many white noise machines are, in fact, too loud. The loudest setting on many machines can exceed the 50-dB limit enforced in hospital nurseries. Some machines can be even louder, generating more than 85 dB at typical crib-mounted distances. That’s the limit at which OSHA requires hearing protection. That is also, not to put too fine a point on it, a seriously bad idea to put next to a baby.

How to Use White Noise for Baby Sleep

  • Turn white noise machines all the way down to start. The idea is to make it work at the lowest volume possible. Most machines can exceed the maximum decibel level recommended for hospital nurseries.
  • Place the white noise machine near the crib, but not in it. Items in a crib can be very dangerous for children.
  • Music isn’t white noise so don’t play it.
  • Play with the sounds a bit. Every baby reacts to different tones differently. Lower rhythmic sounds may be better.

The solution for parents isn’t necessarily to avoid more powerful machines but to be aware of how loud they get and start out by testing the lowest setting to see if that works. It might not. The machine does have to be loud enough for the baby to hear it over their own crying. Still, in the long run, a few nights of interrupted sleep while establishing the minimum effective volume is a reasonable price to pay for future restfulness (and a kid that can still hear).

There are other safety concerns. Rail-mounted white noise machines hidden inside a stuffed animal can be cute but may be placed too close to the mattress to be safe. Generally, babies shouldn’t have anything in their crib in the first year other than a flat mattress and fitted sheet. Extraneous bedding and plush animals can be very dangerous for a child too young to roll away from danger. “Something on a shelf, near the crib, is fine,” says Murray. “Just something simple.”

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It’s also important to keep some perspective. The fact is that nobody really sleeps through the night. As numerous fitness apps and sleep trackers have shown, even adults have periods of light rousing. The key to sleep training is to develop a healthy sleep ritual that helps kids put themselves to sleep. For the right kind of kid, white noise done right is a part of that, but if a child doesn’t need it, they simply don’t need it. It’s worth letting a baby soothe themselves as much as possible in order to find the right path.