nap1
verb
they arrived to find her napping on the sofa:
doze, sleep (lightly), take a nap, catnap, rest, take a siesta, drowse;
informal snooze, snatch forty winks, drop off, nod off, get some shut-eye;
British, informal kip, have a kip, zizz, get some zizz;
North American, informal catch some/a few Zs;
literary slumber.
nap (1) Oxford Dictionary of English