Sleep frequencies are the latest sound-based sleep trend promising deeper, more restorative rest. Here's how they work ...

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

A recent study suggests that pink noise may interfere with REM sleep nd reduce overall sleep quality. The researchers say ...

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

Rather than promoting better quality sleep, pink noise and other ambient noises may harm sleep quality more generally.

Pink noise-often used to promote sleep-may reduce restorative REM sleep and interfere with sleep recovery. In contrast, earplugs were found to be significantly more effective in protecting 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.

The ambient and steady, static-like tone from pink noise is similar to tapes of heavy rainfall or ocean waves, and aims to ...

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

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 ...

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 ...

Aly Lopez was a writer on the sleep and wellness team at CNET. She tested, researched and reviewed sleep and health-related products, technology and trends. She received her bachelor's degree in ...