Ancient humans did not sleep continuously. They commonly slept in two shifts each night, separated by a period of wakefulness ...

My bed and I spend less time together than the experts say we should. Most nights, my head hits the pillow around 11:00 pm, and I’m up—without an alarm—at 5:30 am. That six and a half hours of shuteye ...

For hundreds of years, night didn't mean a long sleep. Long before electric lights lit up homes and streets, people lived ...

There are two very different traditions about the value of sleep in productivity. Thomas Edison (1847-1931), whose lifetime of inventions changed the world, believed that sleep was an idle activity ...

It wasn’t just you who rolled over and hit the snooze button this morning. Americans are now sleeping more than at any point in the past two decades, a trend that accelerated during the pandemic, a ...