The following story is excerpted from TIME’s special edition, The Science of Sleep, which is available at Amazon. Anyone who has nodded off on the subway, faked alertness in a meeting at work or ...

A nightcap might feel relaxing, but research shows it can fragment your sleep and reduce the quality of your rest.

For better sleep, many of us turn to sleep-tracking apps, therapeutic techniques or medications and supplements like sleeping pills or melatonin. But sometimes the solution comes down to nothing more ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There are countless sleep hacks, supplements, and cozy pajamas that may elevate your sleep game, but that ...

How does your brain know when it's time to sleep? There are two main factors: Hours Awake. The longer you've been awake, the stronger your drive for sleep. Circadian Rhythm. Your body operates on a ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Put simply, sleep is the maintenance system that keeps every organ functioning ...