Jury is still out out on Multimat
Quote:
Originally Posted by
BillyBob58
if you don't need those layers in your sleeping bag, they can go down below to either increase warmth or possibly allow you to lighten up on whatever you already have down in there.
...snip...
Please give us your thinking for the Exped in the UC. It is obviously working for you, I'm just not sure how. A pad in the UC is actually advised against by HH. You already described the "sticky" factor of both the HH OCF and the Exped keeping insulation in place. But here is what I am thinking: Your Exped causes a gap, normally a bad thing. However, you are placing high lofting insulation between the HH and Exped pads, which will close the gap. The gap caused by the exped greatly decreases any compression of down that would be normally caused by the UC.
If that is not it, what do you think is the benefit of the Exped in the UC, insulation wise?
The only extra layer in the bag that was not multipurpose was the fleece liner. It is very bulky and quite heavy. Its weight plus that of my 0F bag is roughly the same as a -40 bag. If I had the $ I'd upgrade to a -40F bag in a heartbeat to reduce the hassle factor.
I think you've correctly analyzed how everything is working in the UC. How much its really adding in these conditions I do not know, as I haven't tried the same configuration minus the pad. In the testing I did last Fall where I was adding only the Multimat, it seemed to give me about another 10F.
It was -23F in my backyard last night, but I wasn't up for any more cold testing. My wife thinks I'm crazy enough already.
--Kurt