Yes, you could do that -- there are examples of antique quilts where one quilt is used as the "batting" for another. But I would not advise that for a new quilt for several reasons -- you will be adding the weight of the new top and the new backing to the existing quilt; it will be tough to stitch through the new top + old quilt + new backing; it will be even tougher to attach and sew down the binding.
Invest in the batting and make the new quilt. Fold the old quilt so that the nicest parts show and put it on display.
You will be happier.
Post by e***@gmail.comHi all, I'm new to quilting and have finished a quilt top to replace the fraying one one a quilt that I've had ages. I was wondering if it's possible/ how could I just put the new top over the old one? Thanks!