For many people, rest no longer marks the end of the day—it interrupts it. Work slows, notifications quiet, and the body ...

Turns out, eight hours means nothing if your evenings are a mess.

Getting enough sleep is key to warding off a host of health issues. While falling asleep fast is the goal for some, and staying asleep is the dream for others, it’s normal for your sleep to change ...

If the words "military sleep method" send you running, you might be missing out on the best sleep of your life. This method could be your ticket to falling asleep more quickly (and staying asleep!), ...

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 ...

Some sleep problems are obvious: When you’re tossing and turning all night, or waking up every hour, it’s clear that something’s wrong. But sometimes, sleep quality can be more ambiguous. And until ...