There are few things better in life than a solid midday kip, but equally there are few worse than the total disorientation you feel when you wake up not knowing what year you're in.
So it's a good thing that we have Dr Karan Raj on hand to explain just how long we're meant to sleep for in order to avoid feeling groggy when we come to.
The TikTok medic has been sharing his wisdom with his thousands of followers over the past few months, and has now added to his canon of advice with some tips on getting some shut eye. And there's a fine balance to be had.