O Sleep, O Gentle Sleep,
Nature's Soft Nurse! How Have I Frighted Thee,
That Thou No More Wilt Weigh My Eyelids Down
And Steep My Senses In Forgetfulness?
O sleep, O gentle sleep,
Nature's soft nurse! how have I frighted thee,
That thou no more wilt weigh my eyelids down
And steep my senses in forgetfulness?
-- William Shakespeare (1564-1616), King Henry IV
-- Act iii, Sc. 1