I made a quilt out of climashield 5 oz. It was ridiculously easy. Lay the two layers of material on top of each other and then lay the climashield on top of that. Now sew around three edges of the quilt, trim any excess (mostly if the insulation is sticking way out), and turn the thing inside out so the climashield is sandwiched between the layers of material. Then sew up the top. Add quilting loops if you so desire (probably a good idea). Viola!

It's a little more complicated than this because you'll want some way of making a footbox. The easiest thing is to just put velcro or ties or something on one end. Or you could sew the footbox in permanently after the quilt is done. That part is up to your own creativity.