All my dck sleep in the same room. my ds sleeps in his crib, 2 dcg (18 mos and 22 mos) sleep in playpens and 2 sleep on mats (dcg and dcb who are 3.5) this works well for me in that they are all in the same room and leaves the rest of my house free for me to clean up and eat my lunch and leaves my playroom free for my dd (4) and dcb (4.5) who do not nap.