You can use fleece to line the cage. There are people on here who make fleece liners. I was using aspen bedding, but my little guy made a huge mess with it and I didn't have time to order liners, so I just went to Jo-Ann's and bought some fleece (anti-pill), ran it through the washer and dryer (to account for shrinkage), then cut it to fit my cage. I used two layers (one big piece folded in half since I can't sew). It seems to work pretty well! You could put a towel in between the layers for more absorbency, but then you'd have to sew it shut since the towel is not safe. Most chins don't chew fleece though.