wakeful
1. [ adjective ] carefully observant or attentive; on the lookout for possible danger
Synonyms: watchful open-eyed vigilant argus-eyed
Examples:

"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"

Related terms: alert
2. [ adjective ] carefully observant or attentive; on the lookout for possible danger
Synonyms: watchful open-eyed vigilant argus-eyed
Examples:

"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"

Related terms: alert
3. [ adjective ] (of sleep) easily disturbed
Synonyms: light
Examples:

"in a light doze" "a light sleeper" "a restless wakeful night"

Related terms: shallow
Similar spelling:   Wakefield
  wage_floor