Thanks for the feedback. I didn't really consider that there might be enough room in the roomette for my larger bag, but it seems like there might be, since it's only me in there. Maybe it can even go on the top berth (I don't really want to put it down since that will impact my headroom, i think, but maybe the bag would fit up there even with the berth in the 45º position.)

So maybe I'll try to put it in the room. Worst case, I could put it on one of the seats and use the upper berth for sleeping. I realized there's a small closet in the room, so I can probably unpack the things I might need and put them there, and not really need to access the suitcase again until it's time to put things away and disembark.

Again, thanks for the feedback. I think I'm really going to enjoy the trip.