Significats de prolonged sleeplessness en anglès

He was not unkempt, and yet his air gave her the impression of prolonged sleeplessness.

The dentist looked very pale and haggard in the gas-light, and his eyes had the dull sunken appearance induced by prolonged sleeplessness.

He still preserved, however, his usual pleasantness and gay good-humour, and in spite of prolonged sleeplessness continued his lectures to the pupils about him.