So what are you guys using? At the moment i'm just using that forest moss stuff you get in a brick & put in water. Keeps the humidity up nicely in her small faunarium but I don't know how practical it is as she gets bigger. Its doing its job for the moment & she likes burrowing in it :-)
Moss will work fine. Most keepers use moss in the hides, and newspaper, paper towel, coco husk, ecoearth, bark, or similar products for general substrate.
Cliff Earle Living Gems Reptiles
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I currently have mine on newspaper and paper towels with two moss hides, one at the cool end and one at the hot end, but I am considering changing to plantation soil or something similar.