hotel room vs bedroom

hotel room and bedroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
hotel room	Yes	No	No	No
bedroom	Yes	No	No	No

As nouns, bedroom is a hypernym of hotel room; that is, bedroom is a word with a broader meaning than hotel room:

Other hypernyms of hotel room include bedchamber, chamber, sleeping accommodation, sleeping room.

hotel room (noun)	bedroom (noun)
a bedroom (usually with bath) in a hotel	a room used primarily for sleeping