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 ...

Is it safe to sleep for brief periods several times each day? Medically reviewed by Keri Peterson, MD Fact checked by Zerah Isaacs Individuals who are interested in a polyphasic sleep schedule may ...

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 ...

Daylight savings ends on November 5: Sleep schedules be warned. Soon, and probably to your dismay, you’ll find yourself looking out the window at 4:30 p.m., wondering why it’s so dark, and your daily ...

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 ...