I don't know if anyone uses quilts in the field, but I just made one out of two GI poncho liners with Climashield 5 between them and it makes a really warm quilt to throw on top of your sleeping bag if you get cold during the night. I put 3 yds of Climashield (60" wide) inside the poncho liners...cut to 72" and the extra yard of material was turned width wise and laid on top of it long wise and the edges were sown with a couple stiches in the middle to hold the smaller piece of Climashield in place. It does not require any stitching in the middle since Climashield is stable by itself and will not bunch up...at least so far. The loft is about 2.5" where the double Climashield is and about half that elsewhere.
I like to use a light wt for temp bag and then use the quilt on top if necessary. That system seems to provide a lot of flexibility for me.
I also am going to try using it as an under quilt for my hammocks when using them in the fall and spring when temps are at or above freezing. I've found my Clark NX150 and Warbird hammocks are sooooo much faster and easier to use than a tent when the weather is moderate and are more comfortable than sleeping on the ground.
Just thought I'd pass it on...I spent about $65 for the parts and the assembly took less than an hour...worth it in my opinion.