Cresties are infamous for sleeping in all kinds of weird positions. The pangaea forum has a sticky thread dedicated strictly to photos of cresties sleeping in funny positions. Very cute!
Btw someone on my hermit crab forum recently got a crestie and was posting about it. She used frog moss as a substrate which I thought was BRILLIANT. Helps with humidity, looks great and I don't think there's any way ur crestie could accidentally swallow that stuff. I'm pretty set in my paper towel ways but thought u might be interested for your terrarium.