I just found out my wife is allergic to down so much for my light weight hammock days! . Now I need to seek out other options and my wife and I saw a comforter that had a synthetic fill of Micromax. My first thought was to buy it, cannibalize it and make an under quilt. Apparently my wife wants to actually use it as a comforter. The nerve. Anyway, it, the comforter, packed down very well and everyone at the store was telling us how warm it was. Hey, I'm in sales, my product is perfect for everyone... right.
Down's warmth is gauged by it's fill power so how are synthetics measured?