Can you share data you've collected during this scientific experiment? Air temps, hides, belly temps, humidity, etc... Also please post the exact procedure you've taken during this experiment. Any other observations? Was one laying on top of the other in the hide? If that was the case, was it the same one? How long was this experiment conducted and was there a preference for a particular hide? What kind of hides are you using? You're going to have to be more specific instead of just stating to "take your word."