Dryer, I think I got a better answer because I used my company email (its an R&D company) and told them I am a Design Engineer (which I am) and that I was looking at future product applications. Who knows, maybe I would have gotten the same response with my yahoo email and I didn't say I was a design engineer. <img src="/forums/images/graemlins/smirk.gif" alt="" />

If you compare the thickness, it might be better than down. If it was 3" thick, it would have a Clo of 34.5. I think down has a Clo around 10-15 at that thickness of loft (this is a quess, I didn't calculate the Clo of down, so anyone can correct me if they want). The density is the problem. At 3 inch thickness, a top blanket to cover my body would weigh over 30 lbs. ouch! To get a Clo of 10, the blanket would be .9 inches thick and weigh close to 10 lbs.

The price is a little higher than down as well. <img src="/forums/images/graemlins/smirk.gif" alt="" />