If you can cultivate wholesome mental states prior to sleep and allow them to continue right into sleep without getting distracted, then sleep itself becomes wholesome.
Thou fool, what is sleep but the image of death? Fate will give an eternal rest.
[Lat., Stulte, quid est somnus, gelidae nisi mortis imago?
Longa quiescendi tempora fata dabunt.]
To die: - to sleep: No more; and, by a sleep to say we end The heart-ache and the thousand natural shocks That flesh is heir to, 'tis a consummation Devoutly to be wished.
It's just like they approach things on every movie I've worked on, very much as if it was a live-action movie. The character you're playing, even though he's a rooster and is really stupid, you approach it in the same way you would approach Hamlet, which is exactly how I approached it. But they give you the circumstances. "You're on the boat. You didn't expect to be here. You just climbed in a boat to maybe sleep. You don't even know why you climbed in the boat. You're really that dumb.
I long for scenes where man has never trod; A place where woman never smil'd or wept; There to abide with my creator, God, And sleep as I in childhood sweetly slept: Untroubling and untroubled where I lie; The grass below--above the vaulted sky.
Methinks I see in my mind a noble and puissant nation rousing herself like a strong man after sleep, and shaking her invincible locks; methinks I see her as an eagle mewing her mighty youth, and kindling her undazzled eyes at the full midday beam.
The instincts of the ant are very unimportant, considered as the ants; but the moment a ray of relation is seen to be a monitor, a little body with a mighty heart, then all its habits, even that said to be recently observed, that it never sleeps, become sublime.