Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Tossing and turning more as you age? You're not alone -- and experts think they know why. Dr. Shelby Harris, a sleep psychologist in White Plains, N.Y., explained that stress, sleep structure and ...

If your bedtime routine features an intensive, multi-step process with an arsenal of tools, you might find yourself wondering if there’s an easier way to conk out at night. While sleep masks, sound ...

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 ...

Quality sleep is critical for people living with epilepsy to avoid triggering seizures. Poor sleep can affect seizures, memory, and more.

If you've been diagnosed with sleep apnea, you're in good company: Nearly 30 million adults in the U.S. have obstructive sleep apnea (OSA), a condition in which your breathing repeatedly stops and ...