BBC Minute: On espresso naps
Cat nap, power nap, and espresso nap, call them what you may but they all serve the same purpose of a little rest in between our daily routine. So, what's the best ways to take a nap? And is 'sleep drunkenness' a thing?
Photo: Man falls asleep in office on the table with coffee in hand, Credit: Katie Martynova/Getty Images