A polyphasic sleep schedule breaks sleep into multiple short periods each day instead of one long stretch at night. These schedules can lead to sleep deprivation and health risks because they often ...

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 ...

Official advice says that healthy adults require 7 to 9 hours of sleep every night for physical and mental health. Anything below this and you risk long-term sleep deprivation, which in turn elevates ...

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 ...

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 ...