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

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

Sound machines may not be the sleep saviors many believe. Researchers found that pink noise significantly reduced REM sleep, ...

In A Nutshell Pink noise at 50 decibels reduced REM sleep by 19 minutes per night in healthy adults, potentially affecting ...

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

Marketed as a ticket to deeper sleep, the soft hum of pink noise has become part of millions’ nightly routines. However, its use may come at the cost of sleep quality, a University of Pennsylvania ...

Pink noise by itself, equivalent to "moderate rainfall," was linked to a loss of 19 minutes of REM sleep. And pink noise combined with aircraft noise led to "significantly shorter" time spent in deep ...