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

[ Syn: argus-eyed , open-eyed , vigilant ]

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

[ Syn: light ]

marked by full consciousness or alertness; worked every moment of my waking hours

[ Syn: waking ]