Constantly moving, active, or alert
someone who cannot sleep
(Archaic) Not sleeping; awake.
Find another word for insomniac. In this page you can discover 10 synonyms, antonyms, idiomatic expressions, and related words for insomniac, like: broken sleeper, sleepless, sleepless person, watchful, light sleeper, patient, amnesiac, ex-alcoholic, egomaniac and victim of insomnia.