A Swedish study has uncovered a surprising gap between sleep data and perception—and why some nighttime disruptions linger ...

Research reveals a hidden genetic link that dictates exactly how your nighttime routine impacts your brain.

The Story of Sleep in Human Evolution,” biological anthropologist David R. Samson challenges some of our most cherished ...

Sometimes sleep advice can feel like a lot of what not to do. Don’t drink coffee after 2 p.m. Avoid your phone for at least ...

Waking up exhausted but your sleep tracker says you slept great? You aren't imagining it. Here is how your menstrual cycle ...

Eating a banana before bed may help you sleep better by providing key nutrients like magnesium and tryptophan. Learn how it ...

Opening your windows in the day to catch a breeze during hot weather will ruin your chances of sleeping through the night — ...

The author of Why We Sleep has suffered from insomnia himself, and swears by banishing blue light and a strict nightly ...

From puffer jackets designed for power naps to homes that auto-adjust lighting and temperature, better sleep in Japan is a ...