sleepyhead vs actor

sleepyhead and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
sleepyhead	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of sleepyhead; that is, actor is a word with a broader meaning than sleepyhead:

Other hypernyms of sleepyhead include doer, worker.

sleepyhead (noun)	actor (noun)
a sleepy person	a theatrical performer
	a person who acts and gets things done