Sound machines and “sleep sounds” are often marketed as a cure for restless nights, but new research suggests they may ...

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

Sound machines may not be the sleep saviors many believe. Researchers found that pink noise significantly reduced REM sleep, while simple earplugs did a better job protecting deep, restorative sleep ...

Up to half of American adults flip on ambient noise to fall asleep at night. That love of soothing bedtime noise has spawned machines and apps that deliver specific sounds and frequencies like nature ...