Neuroscientists probing the boundary between sleep and awareness are finding many types of liminal states, which help explain ...

Do ants outweigh humans? Are we getting any more water on Earth? And why do dreams leave us on cliffhangers? Dr Karl answers ...

What happened after Michael J. Fox finally met Eric Stoltz 40 years after replacing the actor in 'Back to the Future' ...

From “Buffy the Vampire Slayer” to forever as Alyson Hannigan marks 22 years of love in a post that has fans swooning. The ...

Sleep paralysis is common, and rarely harmful, though it can be scary. Here's what you should know about the causes, risk ...

Known as the Hat Man, this tall, dark, featureless character has been seen by people in their bedrooms, watching over them ...

Matteo Franceschetti founded Eight Sleep to revolutionize sleep, turning it into "sleep fitness" with technology amidst widespread sleep deprivation. His company has raised over $260M, generated $500M ...

Having your mouth taped shut is the stuff of nightmares — but some people are doing just that to themselves. And in an attempt to sleep better, no less. Doctors say don’t do it. Some on social media ...

In the city that never sleeps, employees at one startup are competing to find the best sleeper. And there's a clear frontrunner, according to the leaderboards at Eight Sleep's New York City office. "I ...

Have you ever woken up unable to move, feeling a heavy weight on your chest, or sensing a mysterious presence in your room? You might have experienced sleep paralysis, a temporary inability to move or ...