Down insulates by trapping warm air between all the little clusters. If you had on too many clothes then it's possible that your body heat never warmed the air in the quilt sufficiently to keep you any warmer than your clothes. I suggest trying again, but with less clothing. Keep your long johns in the hammock with you, then if needed, put them on towards morning as it gets colder. The condensation may be a result of there not being enough body heat being radiating through the quilt, so the surface of the quilts reached ambient air temperature and got wet with all the other surfaces outside that night.