The property of being restful.

peaceful; having a peaceful aspect / restorative; aiding rest / (computing) Alternative form of RESTful

(computing) Using REST (Representational State Transfer).

plural of restfulness

(no object, with complement) To continue to be, remain, be left in a certain way. / (transitive, obsolete) To keep a certain way.

(intransitive) To cease from action, motion, work, or performance of any kind; stop; desist; be without motion. / (intransitive) To come to a pause or an end; end.

(uncountable, of a person or animal) Relief from work or activity by sleeping; sleep. / (countable) Any relief from exertion; a state of quiet and relaxation.

(obsolete, transitive, colloquial) To arrest.

(uncountable) That which remains. / Those not included in a proposition or description; the remainder; others.

present participle of rest