Keep waking up in the middle of the night? Expert sleep doctors list common reasons, and solutions that are worth a try.

"When daylight hours shorten or you’re indoors most of the day, your circadian rhythm weakens, making it easier to wake during lighter sleep stages — often around 3 am, when cortisol starts to rise,” ...

Continuous sleep is a modern habit, not an evolutionary constant, which helps explain why many of us still wake at 3am and wonder if something’s wrong. It might help to know that this is a deep ...

Eye can’t believe this works. There’s nothing more frustrating than waking up in the middle of the night and struggling to get back to sleep. Thankfully, one woman may have just stumbled across a ...

Lately, I’ve been waking up every night in the middle of the night like clockwork. It’s a bit of a mystery as to why: I haven’t been feeling particularly stressed about anything—not work, not my ...