Now that we have wearables tracking our every move, a lot of us can look at stats that supposedly tell us how well we’ve slept the night before. But sometimes, it can feel like your sleep tracker is ...

From TikTok videos touting mouth tape and weighted blankets, to magazines ranking insomnia-curbing pillows, sleep advice is everywhere. And it’s no wonder. People all over the world complain of ...

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 deeply ...