Best I can come up with is:
YODA (tickled, chuckles) I do, yes, I do! Sick have I become. Old and weak. (Points a crooked finger) When nine hundred years old you reach, look as good you will not. Hmm?
Yoda chuckles at this, coughs, and hobbles over toward his bed.
YODA Soon will I rest. Yes, forever sleep. Earned it, I have.