comforter vs bedclothes

comforter and bedclothes both are nouns.

Word	Noun	Adjective	Verb	Adverb
comforter	Yes	No	No	No
bedclothes	Yes	No	No	No

As nouns, bedclothes is a hypernym of comforter; that is, bedclothes is a word with a broader meaning than comforter:

comforter: bedding made of two layers of cloth filled with stuffing and stitched together
bedclothes: coverings that are used on a bed

Other hypernyms of comforter include bed clothing, bedding.

comforter (noun)	bedclothes (noun)
bedding made of two layers of cloth filled with stuffing and stitched together	coverings that are used on a bed
device used for an infant to suck or bite on
a person who commiserates with someone who has had misfortune
a person who reduces the intensity (e.g., of fears) and calms and pacifies