I do this alot & it works just fine. The only time don't is if it wouldn't match & look good with what's on the front side. Otherwise, I often fold the front & back together, then topstitch the edge at time or two, all the way around, & it's done! Don't like binding, or messing with it, on every quilt, so these methods work out nicely too! It's your quilt, do what works for you & enjoy!...