restfully vs quietly

restfully and quietly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
restfully	No	No	No	Yes
quietly	No	No	No	Yes

As adverbs, restfully and quietly are synonyms defined as:

restfully (adverb)	quietly (adverb)
in a restful manner	with low volume
	with little or no sound
	with little or no activity or no agitation (`quiet' is a nonstandard variant for `quietly')
	in a restful manner