Great quote at the beginning of chapter 15 of Dorothy Sayer's Lord Peter Wimsey novel Gaudy Night . 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: yea, so greatly indebted are we to this kinsman of death, that we owe the better tributary half our life to him: and there is good cause why we should do so: for sleep is that golden chain that ties health and our bodies together. Who complains of want? of wounds? of cares? of great men's oppressions? of captivity? whilst he sleepeth? Beggars in their beds take as much pleasure as kings: can we therefore surfeit on this delicate Ambrosia? Can we drink too much of that whereof to taste too little tumbles us into a churchyard, and to use it but indifferently