Polyphasic sleep is less common and involves sleeping more than twice per day. Some people like soldiers follow a polyphasic sleep out of necessity, while babies naturally fall into this pattern.

Medically reviewed by Keri Peterson, MD Fact checked by Zerah Isaacs Individuals who are interested in a polyphasic sleep schedule may wonder if it can help them be more productive, while also ...

Throughout history, however, a bold few have attempted one of several outlandish polyphasic sleep schedules, bringing down sleep time to as little as two hours a day. Theoretically, these ...

But there’s a small group of people actively trying to spend less time in bed, not more: polyphasic sleepers. Part productivity hack, part science experiment, polyphasic sleep is rumored to have ...

Official advice says that healthy adults require 7 to 9 hours of sleep every night for physical and mental health. Anything ...

Polyphasic sleep is a non-traditional sleep pattern where individuals divide their total rest into multiple shorter sleep periods or naps throughout a 24-hour day. This approach contrasts with ...

Segmented sleep consists of two (biphasic) or more (polyphasic) periods of sleep punctuated by periods of wake—both of which can range from minutes to hours depending on the species. Studies ...

But by switching to polyphasic sleep — like Russia-based project manager Eugene Dubovoy did — you could gain back decades of time with your eyes open. He and his team hoped to create an app ...