Save your $65 and book Coach or a Roomette, Business Class on nearly every Amtrak train is a waste of money (Except the 2-1 leather seats used on like the Empire Service).

Coach is just as big as a domestic first seat on an airline, don't plan on getting much sleep. Business gives you another 2-3 inches of legroom, that's about it.

The Roomette and above is the only option that includes a bed and I find I need a roomette to sleep at night, but the economics is tough. Frequently the roomette is available for a reasonable number of points, be sure to check out the signup offers currently on the Amtrak CC, you could easily get enough points for a roomette on the Auto Train.