Visual meaning of 'sleepless'? - learn with images, example in daily life

Visual illustration of sleepless: Characterized by an absence of sleep. - Image 1

sleepless: Characterized by an absence of sleep. - Thumbnail 1

sleepless: Characterized by an absence of sleep. - Thumbnail 2

adjective

Characterized by an absence of sleep.

"I spent a sleepless night worrying about the exams."

medicine body mind condition