comfortable vs comfortableness

comfortable is not a noun while comfortableness is a noun.

Word	Noun	Adjective	Verb	Adverb
comfortable	No	Yes	No	No
comfortableness	Yes	No	No	No

comfortable (noun)	comfortableness (noun)
	a feeling of being at ease in a relationship
	a state of being relaxed and feeling no pain

comfortable (adjective)	comfortableness (adjective)
providing or experiencing physical well-being or relief (`comfy' is informal)
free from stress or conducive to mental ease; having or affording peace of mind
in fortunate circumstances financially; moderately rich
sufficient to provide comfort
having a wide margin