Sound machines promise better sleep, but new research suggests they may quietly steal your REM and deep sleep.

A Penn Medicine study challenges sound machine benefits, finding that "pink noise" disrupts deep sleep and REM cycles, while earplugs are proven more effective.

A study found that certain types of background noise used by millions to help them sleep actually interferes with their sleep cycle.

Pink noise — low-frequency broadband noise often used in sound machines and sleep apps — is associated with a decrease in REM ...

A new study finds pink noise may reduce Rem sleep and disrupt overnight brain recovery, raising concerns over sleep apps and ...

Add Yahoo as a preferred source to see more of our stories on Google. Parents have used white noise machines to help their children sleep soundly for decades. But the American Academy of Pediatrics ...

Plenty of people use apps and ambient sound machines to reduce clamor and improve their sleep — but not all noise is created equal. In fact, new research suggests that a particular type could ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There’s a reason you feel amazing after a deep, full night of sleep. Not only is your body resting, but ...

“The sound machine can generate any of several types of sound, from nature [or] music,” Dr. Cory Portnuff, an audiologist at the University of Colorado Health’s Hearing and Balance Clinic, says. In ...

Having trouble falling and staying asleep is a common problem many people have. The American Academy of Sleep Medicine with the Sleep Research Society found that over one-quarter of American adults ...