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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Are you a super-sleeper? Rare mutation means some people thrive on just 4 hours a night Scientists have discovered a rare genetic ...

Researchers identified a new genetic mutation that may allow some people to survive, even thrive, on three hours of sleep. The mutation is called SIK3-N783Y. Scientists said mice test subjects ...

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 ...

Emily Kramer-Golinkoff can’t get enough oxygen with each breath. Advanced cystic fibrosis makes even simple things like walking or showering arduous and exhausting. She has the most common fatal ...

Scientists have discovered a rare genetic mutation that lets some people thrive with just four hours of daily slumber, an advance that could lead to new therapies to induce better sleep and rest.

For most of us, a good night's sleep means seven to nine hours of rest. But for a rare group of people, just four hours is more than enough, and they wake up feeling sharp, refreshed, and energized.