Originally Posted by grann of 6

I made duvet covers for my grandsons one time by quilting one side of the fabric and attaching that to the backing (like a pillow case). Looked like a quilt from the front. I would think it would be very difficult to try to quilt through down feathers. And then it would be impossible to wash. The object of a duvet is to protect the down and still be able to keep the outside clean. If you quilt it you are defeating that purpose.