Once, years ago, I found myself in an ice-cold bath with no memory of walking to the bathroom or running the tub. Another time, I terrified my friend by leaving our hotel room in the middle of the ...

It's 2 a.m. The house is quiet, cloaked in the stillness of the night. Then, a shuffle. A door creaks. A child walks down the hallway, eyes wide open but fast asleep. Elsewhere, someone mumbles ...

Many people experience problems sleeping including not getting enough sleep, not feeling rested and not sleeping well. This ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The 2026 Sleep Edit. Sleep looks different for everyone. What works wonders for one person might do very little for ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...