I personally dont recommend astro turf. There is decent stuff you can use but no one ever uses it. The stuff thats woven not the rubber backed stuff. I recommend sticking to cage carpet.
Personally I HIGHLY recommend using either newspaper or paper towel. Easy to clean and much healthier then cage carpet. You can be assured that no bacteria is buidling up because its changed with new every time. I can directly contribute it to one of my brazilians health. Well good luck J.J.
Snakes? I just like to teraform!