When welcoming twins, we couldn't see purchasing two pack-n-plays and were concerned with the weight limits of those offering accommodations for twins in one unit. The Joovy Room was a perfect solution - large enough to fit both babies with ease whether playing or sleeping, and compact enough when folded to travel without taking up much more space than one pack-n-play, let alone two! The Joovy Room is spacious and reminds me of the old "play pens" of the past. We were even able to fit a play mat with arches in the Joovy with room to spare, creating a fun and safe environment for play time out of the way of other family members, friends or pets walking around. Yes, it is larger than a pack-n-play and takes up a larger footprint, but we preferred a larger confined play and sleep area for our kids over something smaller that was too restrictive. The mattress sheet that is available fits perfectly and is a thick and smooth jersey cotton - a great addition to purchase along with the playard.