Polyphasic sleep divides rest into multiple short periods each day. It may offer more waking hours and flexibility for certain schedules. However, it can increase health risks over time from sleep ...

It is important to get enough sleep, but what happens when you get those eight hours in little naps instead of in one big ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We all could probably use a little more energy these days, right? Maybe you’re managing a busy job, ...

Can knowledge of how our ancestors slept truly lead us to a life of more natural—and healthy —sleeping patterns? Authors on the Internet have been exploring that possibility, writing a spate of recent ...