Thinking about my next sheep hunt. On the last sheep hunt I was on, I kept waking up literally soaking wet. It happened most nights. I have a Mountain Hardware Lamina synthetic sleeping bag. I have never had this issue before. I literally had to sleep for two weeks in my gortex rain gear inside my sleeping bag to stay dry. This was an August sheep hunt. Part of me thinks this could be sweat, but I still can't understand why my sleeping bag was getting so wet that I had to sleep in my rain gear to wake up even partially dry.

Has anyone had any experiences like this or any thoughts on why the sythetic bag was retaining so much water?