Originally Posted by RootCause
I'm trying to reconcile the differences in your statements in this thread, and TeeDee's reported experience here: TeeDee IX TQ & UQ thread
What do you think might account for the differences in perceived temperature ratings for IX? This isn't like a little bitty difference, it's the difference between a nice 40* quilt and a 10* quilt- that's a huge swing!
All the things MacEntyre already mentioned, plus maybe a couple of more:
TeeDee AND his wife have both ( I think ) reported being almost TOASTY with 3 layers at 11F. So maybe it is not the hot sleeper thing. Maybe they will report in.
I think a primary factor is a custom fit construction and guaranteed consistency of correct fit(just snug enough but with tiny air gap) and draft proofing.
TeeDee got 3 layers of wide IX, and cut it so that each layer - with the bridge hammock side and bottom as the 1st layer of 6(1 hammock, 1 inner nylon shell- 3 IX- 1 outer nylon shell) - is smaller than the next outer layer.
I'll have to go back and read the thread, but I think all of this was then Velcroed to the hammock, covering the sides and ends. So no suspension variable to deal with, it was all custom fit all of the time, ad draft proof, and hung with correct tension for the IX. Not too loose, not too tight, just right. It may be this type of custom fit approach is allowing TeeDee to much more closely approach the potential of the IX. As opposed as a quilt with a suspension meant to be hung on many different brands of hammocks?
There was a weight penalty for the nylon shells, making it about as heavy as a 20-30F down UQ. But you don't have to use the shell, or you could just use the outer shell.
EDIT: no Velcro, rather a perfect custom fit : quote TeeDee
this design for a Bridge under quilt necessitates that the top shell fabric be an exact duplicate of the Bridge Hammock it is used on and that the corners of the under quilt must line up exactly with the corners of the Bridge Hammock."
The coldest I got this winter was 11° F and I was toasty warm wearing only cotton briefs, cotton Tee and cotton socks.