Synonyms for wakeful

Adjective

1. argus-eyed, open-eyed, vigilant, wakeful, watchful, alert (vs. unalert)

usage: carefully observant or attentive; on the lookout for possible danger; "a policy of open-eyed awareness"; "the vigilant eye of the town watch"; "there was a watchful dignity in the room"; "a watchful parent with a toddler in tow"

2. light, wakeful, shallow (vs. deep)

usage: (of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night"