Meaning of the word wakeful in English

What does wakeful mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

wakeful

US /ˈweɪk.fəl/
UK /ˈweɪk.fəl/

Adjective

not sleeping or not able to sleep

Example:
She spent a wakeful night worrying about her exam.
The baby was unusually wakeful last night.