“Me, I like a ‘caffeine nap’,” says author Austin Kreon.
“Drink a cup of coffee, lie down for 20 minutes, and get back to work when the caffeine has kicked in.”
Scientists believe that sleep may enhance the effects of coffee by increasing the availability of receptors for caffeine in your brain.
That’s why a caffeine nap increases energy levels more than just drinking coffee or napping would on their own.