If you’ve ever suffered a night of poor sleep—like, you got about three hours less than you wanted—you may have found yourself in a doom spiral, thinking that you’ll never sleep well again (been there ...

Why sleep changes as you get older – and how to get enough rest - A disrupted nights sleep shouldn’t be inevitable, even as ...

Have you ever noticed how a solid eight hours of sleep feels like a distant memory as you get older? You’re not alone.

After years of dealing with smartwatches that tell me to sleep less because of inaccurate tracking, I found one that gets ...

Americans may not be so bleary-eyed after all. According to Withings, a maker of health tracking devices, Americans are falling asleep these days at 11:32PM and waking up at 7:22AM—nearly a solid ...

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 ...