My husband ant I have a 3 bedroom house. I have two daughters and he has four daughters. right now we have a twin over twin bunk bed in one room and a full over full bunk bed in the other room for over night visitations. His ex has a huge problem with their girls sharing a bed. the girls are 3, 4, 5, 7, 8, 9. Is it illegal for children old to share a bed?