THE DANGER ZONE OF NAP DURATION.
A 20-minute nap clears adenosine. A 90-minute nap completes a full sleep cycle. A 55-minute nap wakes you up in the deepest swamp of sleep inertia wanting to fight your couch.
It is 2:30 PM. Your eyelids weigh fifty pounds each. Will this nap recharge your soul or transport you into another dimension?
A 20-minute nap clears adenosine. A 90-minute nap completes a full sleep cycle. A 55-minute nap wakes you up in the deepest swamp of sleep inertia wanting to fight your couch.
Drink an espresso, immediately lie down for 20 minutes. The caffeine clears your gut right as the alarm goes off. Pure biochemical wizardry.
Congratulations, you slipped into stage-four sleep and now have to re-learn your own name over a glass of water.
Not if it ends before 4:00 PM and stays under 25 minutes.