I have had this cat tree for a while now and my cat just loves it.  She sleeps on the very top perch all the time.  When my husband and I went to Florida to visit my mother, we took our cat with us (in the car).  We took apart this tree and took the top part (from the top platform up) with us and put it together at my mom's house.  It was a familiar place for the cat to sleep and provided scratching posts for her as well.  It worked out perfectly!