And that is one factor that differentiates natural short sleepers from what sleep researchers at the University of California San Francisco call “facultative short sleepers”—those who’ve hacked their ...

Some lucky people have rare genetic mutations that enable them to feel well-rested after just four hours of sleep, while the rest of us need around eight hours to function. Now, researchers have ...

Have you ever wondered why some people need a full 7-9 hours sleep in order to be healthy, productive and well-rested, while others seem to be able to sail through life despite sleeping far less, ...

Classic Studies Involving Short Sleepers An early study of college students with short sleep of 5.5 hours or less were compared to long sleepers who averaged 9.5 hours or more per night. No ...

Some people are genetically built to require less sleep than the rest of us. Albert Joseph Moore / Public Domain Everyone has heard that it’s vital to get seven to nine hours of sleep a night, a ...

Do you think you can function on four hours of sleep? What if you got four hours for two nights? What if you only got four hours of sleep every night for a week: Do you think you could function ...

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 ...

Natural short sleepers are not people who’ve trained themselves to snooze for minimal hours in order to be more productive or meet the demands of an unconventional work schedule (such as a night nanny ...