You’ve had a full night’s sleep, but you still wake up feeling groggy and tired: what gives? Sometimes, it’s not your ...

The survey of 2,000 UK adults found that one in four people (25%) wake up feeling groggy every day, while 62% find it hard to beat lingering sleepiness at least two times a week. If you’ve ever ...

Too often I wake up after a perfect eight ... We might feel groggy or “sleep drunk” for 20 to 30 minutes – and sometimes up to two hours – as these processes take place.

The naps are not so long that you slip into deeper sleep that would leave you groggy after waking up. “We know it’s an easy, helpful way to quickly boost your alertness, your concentration ...

There’s nothing worse than waking up to a blaring alarm, confused and bleary-eyed. But when this groggy feeling continues into the day, it can disrupt our routines and our ability to function.