I would like to say your juvenile frog has no reason to go into aestivation.. it was the fact that your setup dried out extensively over a short period of time. Also the moss most likely was eaten while the frog ate. The carpet-like moss isn't loose. I would suggest that over sphagnum moss. I have purposely let one of my Cranwelli frogs go into the deep sleep with no problems. That frog was an adult not a baby.. moss made your frog impacted in my opinion.