It's been years since I've had a hangover, but I dare say we can all relate.

One thing I always hated is, everytime after an evening of drinking, I'd crash only long enough to "sleep it off" (usually 3/4 hours) and then was wide awake and yet dragging my ass all day long.

I have always been a very light sleeper, and for the most part, NEVER am able to take a nap no matter how tired I am. But yea, I agree sleep is the best cure if you can.
TIS