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.

US military personnel aren't getting enough sleep, but a top Pentagon research agency is trying to figure out how to fix the problems that come with that. The Defense Advanced Research Project Agency, ...

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 ...