hammock_monk, thank you! Great information and I am really looking forward to seeing how this all comes together.
The mesh actually makes since for inside the quilt, I did not think about air movement and getting it into and out of a stuff sack. I think the mesh would help a lot in that respect.
It seems that just about everyone uses down, at least for quilts and the like. I don't think I have ever used down other then in the military and that was not very high quality stuff. I just have always used the synthetics for my bags. Now that I am moving to hammocks, (As soon as I figure out what I am going to do for a hammock) I guess I will have to stare looking at down too. I know it's a lot lighter and warmer too, or so I hear.
Again thanks for the answers and I look forward to following this build!