I have had these for oh I dont know about a month or so... and I took the hides out tonight to look at them and one was all swollen and smelled bad. I think that is why my snake had always been in his other hide (not too wierd since his other hide is on his warm side and thats where he spends most of his time anyways). I am pretty sure this is my error in not sealing the dough well enough. Just thought I would share...