Without 8 or 9 hours of sleep, most of us end up staggering around like zombies. But according to a new study, some people have a genetic mutation that makes them feel perfectly alive after sleeping ...

For most adults, too little sleep carries serious health risks. But rare natural short sleepers may be biologically wired to ...

Lindsey Hudson began to suspect her sleep habits weren’t the norm during her freshman year at Southern Nazarene University in Oklahoma. A competitive high school cheerleader, teenage Lindsey—busy with ...

Your sleep needs are probably influenced by your genes. It’s a new way of thinking about sleep that’s gaining steam, thanks to a rare group of people known as natural short sleepers, or those who can ...

In 2009, Ying-Hui Fu started getting a flood of emails from people who claimed to only need a few hours of sleep at night. Fu and her colleague and spouse Louis Ptáček, both at the University of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Without 8 or 9 hours of sleep, most of us end up staggering around like zombies. But according to a new ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Without 8 or 9 hours of sleep, most of us end up staggering around like zombies. But ...