That is EXACTLY what I use for my moist hide. It's great for keeping in moisture, but I'm afraid that I got one that was too small. My leos have trouble getting in as it is, so I guess I'll have to get the larger one soon :/I'm using paper towel too. Its brown paper towel so it works well in the hide. I have an exo terra reptile den (its magnetic with a "rock" cover.) I put the paper towel in the top part of the hide.