sleeping room vs bedroom

sleeping room and bedroom both are nouns.

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

As nouns, sleeping room and bedroom are synonyms defined as:

Other synonyms of sleeping room include bedchamber, chamber, sleeping accommodation.

sleeping room (noun)	bedroom (noun)
a room used primarily for sleeping	a room used primarily for sleeping