Exhausted parents, meet your new best friend. Quilence recreates the comforting sounds of the womb to help your baby fall asleep faster and stay asleep longer.
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Babies are used to constant sound in the womb. White noise recreates that familiar, comforting environment.
Block out siblings, pets, doorbells, and other sounds that can wake a sleeping baby.
Consistent use helps baby recognize sleep time, making bedtime routines easier.
Quilence is designed with baby safety in mind. Follow these tips for safe use.
Keep the volume at conversation level or below — about 50-60 decibels.
Position your device at least 6 feet (2 meters) away from your baby.
Set the timer for naps and nighttime. Consistent use helps build sleep associations.
No sudden loud sounds or jarring changes — just consistent, soothing noise.
These gentle presets are favorites among parents for helping babies sleep.
Gentler than white noise with more bass. Many babies find it more soothing and womb-like.
Low-frequency sounds that mimic the rumbling sounds babies hear in the womb.
A soft, balanced blend that's perfect for sensitive little ears.
The first three months after birth are often called the "fourth trimester" — a time when babies are adjusting to life outside the womb. White noise helps recreate the constant, whooshing sounds they heard for nine months, providing comfort during this transition period.
It's easy to assume that quiet is best for a sleeping baby — but the science suggests the opposite, especially in the first months of life. In the womb, babies are surrounded by a remarkably loud acoustic environment: blood rushing through the placenta, the maternal heartbeat, muffled external voices, and the rumble of digestive sounds combine to create a constant ambient noise of roughly 85 dB — comparable to a busy restaurant or a running vacuum cleaner. Silence, for a newborn, is the unfamiliar state.
Pediatrician Harvey Karp, author of The Happiest Baby on the Block, popularized the concept of the "fourth trimester" — the first three months after birth during which babies are developmentally still adjusting to life outside the womb. Karp identified loud white noise as one of the five key elements that trigger the calming reflex in young infants, the same neurological response that kept babies calm in the womb. In his clinical experience, white noise at moderate-to-loud volumes can calm a crying newborn within seconds and help them stay asleep for longer stretches.
Multiple studies have confirmed the effectiveness of white noise for infant sleep. A controlled study published in Archives of Disease in Childhood found that 80% of newborns fell asleep within 5 minutes when exposed to white noise, compared to 25% in the control group. Pink noise — which de-emphasizes higher frequencies and sounds softer and more natural — is another excellent option, and some research suggests it promotes deeper sleep stages in both infants and adults.
Safety is paramount. The American Academy of Pediatrics recommends keeping white noise below 50 dB for infants and placing the device at least 7 feet from the baby. Quilence's gentle fade-out Sleep Timer is particularly valuable here: once your baby is deeply asleep, the sound can gradually fade to silence rather than cutting off abruptly — preventing the sudden acoustic change from triggering a wake-up.
Yes, when used correctly. The American Academy of Pediatrics recommends keeping white noise below 50 dB for infants and placing the device at least 7 feet (2m) from the baby. At safe volumes, it's a well-established tool for infant sleep.
Newborns spent nine months surrounded by constant womb sounds — blood flow, heartbeat, muffled voices — at around 85 dB. Silence is actually unfamiliar and uncomfortable for them. White noise mimics the womb environment, helping babies settle faster and sleep longer.
Many parents do, safely, at appropriate volumes. Some prefer to use the Sleep Timer so it fades out after the baby is deeply asleep. Quilence's gentle fade-out prevents a sudden stop from waking the baby.
Both work well. Pink noise is softer and lower-pitched, which some parents find more soothing. White noise provides broader masking coverage. Quilence's Gentle Mix blends elements of both — a popular choice for infants.
Below 50 dB — about as loud as a quiet refrigerator hum. Don't place the device in or right next to the crib. A phone or iPad on a shelf across the room at moderate volume is the safe, effective setup.
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