Grouseman
Adventurer
Ok, I am going to camp out of CDN 101 trailer.  Tent set-up over it.  No Roof Top Tent.  I will have a queen size bed area.  I don't want to use sleeping bags.  I will put wool blankets over my sleeping pad for insulation on the bottom of bed.  Also I am installing foam insulation board under my metal lid top of the trailer.  Now I want to use a down comforter on top.  On my next trip there will be temps in the low 30's at night.  Where do I get a down comforter that is rated for those temperatures?