Another big cause of nighttime awakening is caffeine. Caffeine has a half life of 5 hours, meaning it can take 5 hours for ...

A sleep expert details why you wake up groggy from a nap and how to make the most of your snack-sized slumber.

New research on ‘slow-wave sleep’ may have implications for others battling insomnia, including people with anxiety and ...

Stress was impacting my quality of sleep, so I turned to morning sunlight to beat my slumber troubles. Here's why you should, too.

Waking up tired despite getting enough sleep? Only specific sleep phases grant restorative rest, and you might be missing out ...

You know that a good night’s rest recharges your body and mind for the day ahead, allowing you to recover and recalibrate so ...