We are in a very early stage of planning a trip and who is coming might change all the way until the end. The most likely situation is Bedroom 1: 1 adult and 1 12y.o i.e my kid and I Bedroom 2: 2 adults (not a couple) i.e my mom and her brother If 1 adult and 1 14y.o were to join Bedroom 1, what would be best? 1) to add them during reservation 2) to add them at checkin 3) to add them when they show up Also, if we stay in the original situation, is it ok if one of the Bedroom 2 adults sleeps in Bedroom 1 some nights? Or if the 12 y.o goes to Bedroom 2? That would happen the night prior a long runDisney race.