Power nap

A power nap or cat nap is a short sleep that terminates before deep sleep (slow-wave sleep; SWS). A power nap is intended to quickly revitalize the sleeper. The practice is connected to the custom of midday nap of many traditional societies around the world, with the difference that it has been studied and assessed by research.

There are different types of power naps, very much like the Spanish siesta For example, a power nap combined with consuming caffeine is called a stimulant nap, coffee nap, caffeine nap, or nappuccino (see cafè siesta in Spanish).