Pink noise emphasizes lower frequencies — making it sound similar to steady rainfall or ocean waves. It’s often used for sleep.

The soothing sounds of pink noise, designed to obscure outside clamor and lull listeners into sleep, may not be so innocuous, a new study suggests. Researchers at the University of Pennsylvania, with ...

A new study from the University of Pennsylvania suggests pink noise, a popular sleep aid, may actually decrease vital REM ...

Think your sound machine is helping you sleep? It might be doing the opposite. A new study from the University of Pennsylvania Perelman School of Medicine found that listening to pink noise at bedtime ...

It turns out that squats are better than diddly-squat in the evening. New research finds that taking a break from the couch-potato life to do simple exercises before bed can help you sleep about a ...

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 ...

Got a problem? Science says you should sleep on it.