I noticed that some of the rooms in Cat. 11 sleep 3 and some sleep 4. My family consists of two adults, 2 yr old and 1 child on the way. I wanted to get a room in level 7 aft, but these sleep 3. I was wondering if we go next year, can the baby sleep in a crib? Will this count as 3 and a crib or 4 in a room. Thanks.