Before revision: A woman having a nap in a napping pod, in the café Nappuccino in Barcelona, Spain A power nap or cat nap is a short sleep that terminates before deep sleep (slow-wave sleep; SWS).
After revision: A woman having a nap in a napping pod, in the café Nappuccino in Barcelona, Catalonia (Spain) A power nap or cat nap is a short sleep that terminates before deep sleep (slow-wave sleep; SWS).