Men tire themselves in the pursuit of sleep.
There is one sweet lenitive at least for evils, which nature holds out; so I took it kindly at her hands, and fell asleep.
There are many ways of inducing sleep--the thinking of purling rills, or waving woods; reckoning of numbers; droppings from a wet sponge fixed over a brass pan, etc. But temperance and exercise answer much better than any of these succedaneums.