White noise machines have become a staple on baby registries, right up there with swaddles and pacifiers. It seems like a new parent’s lifesaver: a device that helps your little one sleep longer.
“White noise machines can be helpful for some families, but they need to be used safely and appropriately,” says Jordan Kridler, M.D., a pediatrician at Henry Ford Health. “When parents ask me about them, I always say it depends on how you’re using it.”
Here’s what you need to know before adding a white noise machine to your nursery.
Do White Noise Machines Damage Hearing?
White noise machines are safe for babies if you keep them at the right volume. The American Academy of Pediatrics (AAP) recommends keeping white noise machines at a volume below 50-60 decibels. That’s about as loud as a refrigerator hum or gentle rainfall.
“Infant eardrums are more sensitive than older children’s or adults’,” Dr. Kridler explains. “Prolonged exposure to loud noises could damage their hearing, so keeping the volume low is critical.”
Distance is also important. Place the machine at least seven feet away from your baby’s crib on a nearby table or the floor. If it’s too close to your baby, the sound can be too loud and harsh.
What Type of White Noise Is Best?
If you’re shopping for a white noise machine or browsing apps, you’ll notice options for everything from ocean waves to lullabies to heartbeat sounds. For infant sleep, simpler is usually better.
“A continuous, unchanging sound is often best for babies,” says Dr. Kridler. “Melodies and songs with varying pitches can actually be distracting to a developing brain. Stick with true white noise, brown noise or simple static-like sounds.”
White noise apps aren’t quite the same as dedicated machines, either. Apps can have buffering issues, ads or short sound loops that repeat with noticeable breaks. All of these can disrupt sleep rather than support it.
Can My Baby Use a White Noise Machine Every Night?
While it might be tempting to keep the white noise going all day and night, Dr. Kridler cautions against round-the-clock use. “Babies need to hear ambient household sounds as part of their speech and language development,” she says. “They need to hear conversations, everyday noises and the rhythm of family life.”
So use white noise when you really need it, such as during daytime naps or in an unfamiliar place. They also work well for time changes or when you’re really exhausted and don’t want to risk waking the baby. If your baby’s room is quiet at night, you could skip it then.
Many machines also have timer functions that automatically shut off after 30 or 60 minutes. “Timers are a good solution because once your baby is in deep sleep, the white noise has done its job,” says Dr. Kridler. “You don’t need to keep it running for hours.”
Can Babies Become Dependent on White Noise Machines?
Need A Pediatrician?
One of the most common concerns parents raise is whether their baby will become dependent on white noise. It depends on how you use it.
“White noise machines can become a sleep crutch, which is anything your child needs to fall asleep that they can’t provide for themselves,” Dr. Kridler explains. “But this isn’t unique to white noise—it could be rocking, nursing or a pacifier.”
You can avoid this issue by using the white noise machine only when needed. “Consider trying to put your baby down to sleep without white noise when there won’t be any loud sounds,” says Dr. Kridler.
Still, Dr. Kridler says, sometimes parents need to just rely on it for a while if it’s hard to get their baby to sleep. If this is you, don’t feel guilty about it. “If your child is sleeping well and you’re using the machine safely, it’s not something you need to stress about,” Dr. Kridler reassures. “You can always adjust as they get older.”
Before investing in a white noise machine, Dr. Kridler suggests seeing how your baby sleeps without one. “Some babies are naturally sound sleepers and don’t need any additional help,” she says. “If your baby is sleeping fine without white noise, there’s no reason to introduce it.”
Is It Safe to Use a Fan in a Baby’s Room?
Some parents use fans instead of white noise machines, which can serve double duty by circulating air and providing background sound. If you go this route:
- Keep it low: Avoid running it on the highest speed setting, which is likely too loud for your baby’s ears.
- Move it away: Keep the fan several feet away from your baby’s crib so they can’t get injured by the moving blades.
- Use indirect air circulation: Point the fan at a wall to create airflow, but not directly at your baby. Direct air from a fan can chill them and can dry out eyes and noses.
Safe Sleep Is Key
White noise machines aren’t dangerous when used properly, but they may not magically fix naptime struggles, either. “Think of white noise as one tool in your sleep toolkit,” says Dr. Kridler. “Combined with consistent bedtime routines and safe sleep practices, it can help some babies sleep better. But not all babies like them, and they are not essential for every family. The key is to find what works for you and your baby.”
Reviewed by Jordan Kridler, M.D., a pediatrician who sees patients at Henry Ford Medical Center – Royal Oak.
