Get all your news in one place.
100's of premium titles.
One app.
Start reading
Tom’s Guide
Tom’s Guide
Technology
Lauren Jeffries

What is sleep inertia? We asked an expert how to stop feeling groggy in the morning

A woman waking up groggy in the morning experiencing sleep inertia.

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. This is called sleep inertia, and it’s the state between being awake and being asleep.

But why does sleep inertia happen? While everyone is likely to experience sleep inertia, some may feel it worse than others. There can be plenty of different causes, from underlying sleep disorders and health conditions to lifestyle and habits.

To fully understand sleep inertia, we’ve asked Dr. William Lu, Health Medical Director & Sleep Medicine Physician at Dreem, to find out what causes sleep inertia, how to get rid of it and how to prevent it.

Sign up to read this article
Read news from 100's of titles, curated specifically for you.
Already a member? Sign in here
Related Stories
Top stories on inkl right now
One subscription that gives you access to news from hundreds of sites
Already a member? Sign in here
Our Picks
Fourteen days free
Download the app
One app. One membership.
100+ trusted global sources.