sleeping accommodation vs bedroom

sleeping accommodation and bedroom both are nouns.

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

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

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

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