They are very strict about this rule. When our boys were 1 and 3 we wanted a king room (we were going to sleep with our 3 year old and put the 1 year old in the pack n play) but they said "no way". So we just ended up getting the room with two doubles. In one bed I slept alone, in the other bed dh slept with our 3 year old with a bedrail on one side so he wouldn't fall out.