Dr. Rinn: Our understanding of sleep as a fundamental process for both physical and mental health is really growing. Some of the functions of sleep include impacts on mental health, memory, immune ...

Your bedroom’s design, sleep habits, indoor allergens and pollutants in the bedroom, and several other factors can determine how well you sleep.

Here’s why sleep matters so much – plus how to fall asleep faster and stay asleep longer.

New research finds that sleep is essential for protecting brain mitochondria by transferring toxic metabolic waste from neurons to glial cells for disposal.

You may remember little to nothing when you wake up, but there’s a lot going on while you sleep. You just spent the previous seven to nine hours moving through a highly structured cycle of sleep ...

The clock reads 2:37 a.m. Your mind races while your body exhausts itself tossing beneath tangled sheets. If this midnight misery sounds familiar, you’re far from alone. Nearly 70 million Americans ...

Sleep deprivation causes irritability, relationship issues, depression, anxiety, weight gain, medical problems, cognitive deficits, impaired work performance, car crashes, and a host of other ills way ...

Here's how REM sleep repairs and rejuvenates your skin, boosts collagen production, reduces inflammation, and helps you wake up with a natural, healthy glow.