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

What is a sleep study? A sleep study, also known as a polysomnogram, is a diagnostic test that monitors various body functions while a person is asleep. It is most commonly used to diagnose sleep ...

PHILADELPHIA -- Marketed as a ticket to deeper sleep, the soft hum of pink noise has become part of millions’ nightly ...

Columnist Ben Hofmeister has just completed his third overnight sleep study in three years as part of an effort to control sleep apnea.

Pink noise includes several naturally occurring sounds, such as rainfall, wind and rustling leaves.

If the organ doesn't get time to clean itself at night, it'll find (often inconvenient) time during the day.

This story was featured in The Must Read, a newsletter in which our editors recommend one can’t-miss story every weekday. Sign up here to get it in your inbox. For most of my adult life, I’ve been ...

Share on Pinterest Sleep is possibly the most important factor for longevity, research shows. Image credit: Maria Korneeva/Getty Images Insomnia is a disorder characterized by experiencing difficulty ...