Originally Posted by Dirtysouth
Having done 1000+ mile days (under 24 hours), I can certainly say that they suck. Doing back to back 1000 mile days or back to back to back 800 mile days will really blow.
I absolutely disagree. But for 1000 mile days to be enjoyable takes practice. If the OP is not in the habit of this kind of long distance riding, he may not enjoy the experience as much as I do.
Bottom line... go out and try it. And do not be afraid to throw in the towel and grab a motel room if you feel you can not safely continue. No trip is worth crashing for.