I have a soon to be 9 yo son, a 6yo son and a 4yo dayghter and they all share the same room. The boys have a bunk bed and my daughter a single bed. They sleep in the room beside our room (my husband and mine). There is another room downstairs but none of them wants to go sleep downstairs so far! They don't seem to mind about sharing. A little bit harder when my "intellectual" 9yo wants to be alone reading in his room and that my 6yo little monster wants to pick on him!!! Other for that, it goes perfectly, even the sleeping at night. I give them 5 minutes to read, 5 more to talk, then that's it!