I have used baby wale corduroy in a quilt! It wasn't so bad to work with. I did use 1/2" seams and I was very careful of keeping the nap all the same direction. I put in a pin going from the top down in each piece.

Quilt was made back around 1982?? and was in heavy use for many many cold winters. From 6 corduroys in brown/dark green/gold colors and prints, about 6" squares in a trip around the world setting. I backed it with a chocolate brown satin sheet and tied it. That thing has proved indestructible and the whole thing is in much better shape than you'd ever guess including the poly satin sheet back. Most of the designs have rubbed off the printed pieces.

I didn't know designs would rub off! I have seen an old quilt, however, where the dye-injecting needle holes eventually became actual holes in the quilt -- it looks like a polka dot! This is one nearing 80 years old.

I love double knit quilts. I have a king dk size quilt I bought at a thrift store. Nobody wanted it, it weighs a ton. When the heat goes out this winter, we can just climb under it. They are so warm. I have some blocks I cut up for lap quilts for the nursery homes. Getting to it is another story.