We did the rollaway with 5 in the room last summer and it was fine. If I recall correctly the bed could kind of fold up on one end so that it was flat against the wall during the day. We kept it with the head at the end of the dresser/counter/tv stand thingy next to the balcony doors. I think we may have had to move a chair and table next to the bed closest to the balcony doors. All in all we had plenty of room.
Did I also mention that we had a packnplay in the room for the baby, so technically we had 6 in the room. The playpen was on the other end of the dresser/tv counter in front of what would be a connecting door if there was one. WE fit fine, and that even left room for the baby to play in the room near the balcony doors(that is once the rollaway was put up against the wall.)
Funny though, friends of ours stayed there with 2 teenage boys and their dad(just 3 in the room) and they felt cramped! He was ROTFL thinking of the 6 of us in the room and could not believe that we felt there was plenty of room. We did take advantage of the wonderful shower facilities in the gym so that we all did not have to wait to take showers in the room. THe shower in the gym/spa was great! Pretty smelling soap and shampoo were provided, lots of room for changing and no one rushing you out! ("Ma, are you done yet!" LOL)