adj. 25B6; adjective
Maria was restless : UNEASY, ill at ease, restive, fidgety, edgy, on edge, tense, nervy, worked up, nervous, agitated, anxious, on tenterhooks, keyed up; informal jumpy, jittery, twitchy, uptight, like a cat on a hot tin roof; Brit. informal like a cat on hot bricks.
a restless night : SLEEPLESS, wakeful; fitful, broken, disturbed, troubled, unsettled; rare insomnolent.