I like the idea of communal sleeping and it is done all over the world because it's a custom or because people are too poor to have separate bedrooms. I come from an eastern european background where most people are too poor to have more than one bedroom or they all sleep in the main living area. All family members sleep together, children, parents, grandparents. Children who sleep with their families have a lower tendency to develop fears of monsters, bedwetting, etc. because they feel loved and more secure. Just my honest opinion.