Sweaty sweat pants
Spent four nights last week at Dolly Sods WV with my new DIY UQ. Temps were down to 10 deg at night. with my synth base layers, fleece pants and top, UQ and new Nunatak Arc TQ, i was sweating my butt off. I had condensation from the netting all the way to the underside of my cc pad. seems like the best bet for the source of your h2o issues. i am a warm sleeper tho.
BTW Dolly Sods in the winter is Burly