Just wanted to let you know that the bedding is not where the snake gets the mites. They come from the snake its self. All natural substrates wether it be reptibark,aspen shavings,jungle earth ect are all cleaned to make sure there are not any bugs in them, most of the time the package will say "heat treated" or something along those lines. I use coconut husk that is ground up, actually right now my bp is in a tub so Im using aspen for the time being.
Just thought I'd throw that out there about the mites....