household linen vs soft goods

household linen and soft goods both are nouns.

Word	Noun	Adjective	Verb	Adverb
household linen	Yes	No	No	No
soft goods	Yes	No	No	No

As nouns, soft goods is a hypernym of household linen; that is, soft goods is a word with a broader meaning than household linen:

household linen: drygoods for household use that are typically made of white cloth
soft goods: textiles or clothing and related merchandise

Other hypernyms of household linen include drygoods.

household linen (noun)	soft goods (noun)
drygoods for household use that are typically made of white cloth	textiles or clothing and related merchandise