Pete has 2 wheels one in his cage and another for his playpen he used to use the playpen wheel for at least a few minutes each playtime but now he just hops in and straight back out he uses his sand box and tubes and loves to climb I'm wondering if he is just bored with it or has enough wheel time during the night in his cage although I don't tend to hear him on that one as much as I used to either apart from that he seems fine and active