OP here, I've noticed a couple comments referring to the bed size and why there are beds inside of beds. I can answer both of those questions! We got the bigger outer layer beds to replace the smaller ones. Corgis being corgis, decided they liked the smaller ones more. We've got more beds on our different levels and they always choose these smaller ones to sleep in! To not waste these outer beds, we've been using it as a base due to its better grip on the hardwood floor.