wakeful

/ˈweɪkfəl/
adjective
  1. Unable to sleep; not sleeping.
    • After drinking too much coffee, she felt wakeful all night.
    • He lay wakeful in bed, thinking about the big presentation the next day.
    • The baby was wakeful and cried for hours despite his parents' efforts.
  2. Marked by alertness or vigilance; watchful.
    • The guard remained wakeful throughout his night shift, checking every door.
    • A wakeful dog barked at any strange noise near the house.
    • The hikers stayed wakeful as they crossed the bear's territory.
Antonyms
What does "wakeful" mean? | whatsthatwordmean | whatsthatwordmean