catch some Z's vs wake

catch some Z's is not a noun while wake is a noun.

Word	Noun	Adjective	Verb	Adverb
catch some Z's	No	No	Yes	No
wake	Yes	No	Yes	No

catch some Z's (noun)	wake (noun)
	a vigil held over a corpse the night before burial
	the wave that spreads behind a boat as it moves forward
	the consequences of an event (especially a catastrophic event)

catch some Z's (verb)	wake (verb)
be asleep	be awake, be alert, be there
	stop sleeping
	cause to become awake or conscious
	to alert someone to something
	arouse or excite feelings and passions