For those of you interested in Amtrak sleeper cars, reserve early, and expect to pay the highest fares on the in-demand, scenic routes. Amtrak's revenue management has gotten a lot better in the last few years, and they are in the midst of a rolling stock and staffing shortage. Sell-outs are common, and ideally, you want to reserve early enough to be in the base sleeper, which won't be cancelled if equipment is scarce. There are frequent reports of sleeper car passengers being bumped down to coach (with a full refund of the room charge) about a month out when it becomes clear that Amtrak will only one sleeper instead of two on your route and you were booked in the second sleeper.

Otherwise, have a great trip, don't be attached to arriving on time, and enjoy that observation car!