I use aspen and 2 identical half log smaller sized hides for Furio because he's still a little squirt. I stuff the logs loosely with moss though which he absolutely loves burrowing in and making a nest. Everyone has given you really good suggestions so far. It's to the individual keeper as to what they use and if they want to make it work. As a tank user, get ready to battle humidity issues (The moss works great with wet towels over the screen of the tank)

Good luck!