POE is using it in their sleeping mats. However, word has it that the material is prone to flaking if handled roughly, so it needs to be protected (which POE does by encapsulating it). Because of this, I suspect it's use is outside the realm of DIY.
However, it's merits have been touted a lot, and yes a quilt could be wonderful. The one drawback is that it's not too compressible (if it's compressible at all). So, you're talking about taking on a pretty hefty volume penalty for said quilt.