1. to remain awake during the night; to fail to sleep or sleep very little during nighttime hours
I didn't sleep a wink last night because I was too worried about the exam.
Não dormi a noite porque estava muito preocupado com o exame.
2. to be restless or unable to sleep due to anxiety, excitement, or other concerns
She didn't sleep that night thinking about the job interview.
Ela não dormiu a noite pensando na entrevista de emprego.