I recently upgraded my two boys' cage to a big Superpet cage that's 24x24x36 and originally started with Carefresh bedding on the bottom pan. After realizing how much is actually needed to fill the bottom and how wasteful having to throw out the bedding each week, I decided to line the bottom of the cage with fleece. What I ended up doing is taking big fleece blanket and cutting it a bit bigger than the base and just setting the cage on top of the blanket so a few inches are sticking out along the outside to keep it in. It seemed to work out great last night, until this morning. When I woke up, I found that they had chewed a big hole in the blanket at one of the corners and were tunneling under the blanket and having a good old time! Any suggestions on another way to line the bottom without them tearing it out again? I had originally thought of velcro but I'm not sure how well it would stick to the fabric and it would take a lot to line the 24x24 base and blanket.