Sleep & waking up
Sleep inertia: why you feel groggy after waking, and what actually helps
That heavy fog after the alarm has a name. How long it lasts, what makes it worse, and which fixes the research really supports, snooze button included.
Sleep & waking up
Grogginess, snoozing, how much sleep you need: what happens when you sleep and wake, and what the research says actually helps.
Every claim links to its source. How we write