We did this last March and we're assigned two different rooms, went to the front desk and asked if we could stay in the first room for the second cruise. They checked and since nobody was booked in the room we were in they let us stay. Last January we had to move, not a big deal the Stewart's will move everything from one closet to the other, just need to pack up the rest and they will move you. Not a big deal just takes a bit of time to throw things back in a suitcase then unpack again but at least the closet stuff is already done