bedroom vs sleeping room

bedroom and sleeping room both are nouns.

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

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

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

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