Do but consider what an excellent thing sleep is: it is so inestimable a jewel that, if a tyrant would give his crown for an hour’s slumber, it cannot be bought: of so beautiful a shape is it, that though a man lie with an Empress, his heart cannot beat quiet till he leaves her embracements to be at rest with the other ….
Thomas Dekker (c. 1572-1632) English dramatist and pamphleteer
The Gull’s Hornbook, ch. 2 (1609)