Over time, the bed stops feeling like a place of rest and becomes a place where you struggle to sleep. This learned reaction ...

That sudden jolt or twitch just as you’re drifting into sleep isn’t your imagination. It’s a real physiological event. One moment, you’re fading into slumber, and the next, your arm or leg flings out ...

Neuroscientists studying the shifts between sleep and awareness are finding many liminal states, which could help explain the disorders that can result when sleep transitions go wrong Yasemin ...