Sleep is a most useful and most salutary operation of nature. Scarcely any minor annoyance angers me more than the being suddenly awakened out of a pleasant slumber. I understand that in Italy they torture poor people by depriving them of sleep. `Tis a torture that cannot long be endured.
Martin Luther (1848). “The table talk or familiar discourse of Martin Luther, tr. by W. Hazlitt”, p.316