Crossword puzzle clue "a good cure for it is sleep per w c fields"

A good cure for it is sleep, per W. C. Fields

"The best cure for insomnia is to get a lot of ___" (W.C. Fields quote)

Fields who founded Mrs. Fields

Shakespeare character who says "Good night, ladies; good night, sweet ladies; good night, good night"

Miles per gal., points per game, etc.

20 cigarettes per unit and 10 units per carton, e.g.?

"Per hour" or "per mile" figure

Fictional character who declares "Sleep? ... I do not sleep, I die"