We had 3 cat boxes set up 2 in the basement and one in the 2nd fl bath. After everyone started to get along we got rid of the one in the upper bath. As for the basement one I bought very long storage container for a cat boxx.It is about 4 inches high and around 3 ft by 2 ft in length. So far all is working. It is the sleeping arangments we need to work on. Chloe sleeps by my ankle, Corbyn sleeps between my legs and Billy wants to sleep there.Corbyn lets Billy have pretty much everything in the house.But Corbyn will not budge on this area.So Billy gets the "boot" out of there and crawls up by my neck.When I get up in the morning I have no feeling in my entire body.They do not let me move at all during the nite!!!