Carley Millhone is a writer and editor based in the Midwest who covers health, women's wellness, and travel. Her work has appeared in publications like SELF, Greatist, and PureWow. Polyphasic sleep ...

Sleeping for 7 to 9 hours at night isn't the only way to catch some z's. Here are four alternative sleep cycles -- and they're pretty obscure. Annie Miller Medical Reviewer Annie Miller is a licensed ...

We all could probably use a little more energy these days, right? Maybe you’re managing a busy job, caring for an ill family member or chasing little kids around — there are a million and one reasons ...

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 ...

Historic records show humans slept, woke, and slept again regularly before the Industrial Revolution. But was it really a universal habit, and does it have benefits? Though most modern societies sleep ...