sleeping accommodation vs chamber

sleeping accommodation and chamber both are nouns.

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

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

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

sleeping accommodation (noun)	chamber (noun)
a room used primarily for sleeping	a natural or artificial enclosed space
	a room used primarily for sleeping
	a room where a judge transacts business
	an enclosed volume in the body
	a deliberative or legislative or administrative or judicial assembly

sleeping accommodation (verb)	chamber (verb)
	place in a chamber