I use stuff similar to that for quarentine and when I run out of Apen Bedding. I also use it for my Geckos. It works great! Especially if the roll of it is the same size as the cage because you just cut it and stick it in.

With the issue of having it staying rolled up, I just lay it where the sides are pushing down towards the cage and stick the stuff on top. Depending on what you are using, somce stay by just setting it there. It depends on how tightly rounded the stuff was when it was packed.

I think it works great!