I am considering a trip on the Southwest Chief to Arizona from Chicago. I'd like to use a roomette for the first part of the trip only. I have seen posters suggest that strategy on here before. I've never done it myself. I either use the sleeper for an entire trip or coach for the entire trip. I'd like to know from someone whose done it what the logistics are. For example, do you detrain from the sleeper at some stop and then reboard one of the coaches so as not to drag luggage throught the diner? Any help is appreciated.