Most animals don’t keep the same schedule we do. While we try to squeeze in eight hours and call it a good night, many animals snooze through more than half the day—and some barely stay awake at all.

Sleep is as vital as it is elusive for many of us. We’ve all heard that eight hours of shut-eye is the magic number, right? But what if your very quest for perfect sleep is what’s keeping you awake at ...

The US military's research arm is researching how to improve sleep for combat troops and pilots. The DoD has long known that chronic sleeplessness can pose serious long-term health risks. DARPA-funded ...

Colino is a contributor for TIME. Colino is a contributor for TIME. In a culture that’s highly goal-oriented, yet another form of performance anxiety has emerged: It’s called orthosomnia, and it ...

If you have a long-term sleep disorder that causes excessive daytime sleepiness (EDS), you may need to take medicines to manage your symptoms. The different medicines available for these conditions ...