![]() Pediatrician Harvey Karp (author of The Happiest Baby on the Block) agrees. Parents shouldn’t be afraid to use moderate white noise during sleep, Karp says. ![]() In a normal home, it might not be possible to keep background noise that quiet all the time. 50dB is as loud as a refrigerator, electric toothbrush, or the dishwasher running in the next room. The American Academy of Pediatrics recommended a noise limit of 50dB for infants in hospital nurseries of. That may seem obviously loud… but that’s how loud a lot of noise machines get (or even louder!). All the children in that study woke up with 12 minutes. Another study showed two-thirds of kids woke up after 3 minutes when background noise was 75 dB (as loud as a vacuum cleaner 3 feet away). Whether it’s a noise machine or a noisy environment, background noise that’s too loud can affect the quality and quantity of a child’s sleep. The big takeaway from their research is never leave your noise machine on max volume. At maximum level, nearly all the machines were so loud they could disrupt sleep even placed across the room. They found some machines (not all) were so loud they could do hearing damage (to a child or an adult!) if left on over 8 hours. But, when a noise machine is too loud or too close, it can disrupt sleep or worse – cause permanent hearing damage.Ī group of Canadian researchers measured noise machines set to maximum level. Infant sleep machines are designed and marketed to help infant’s sleep better.
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