Z Any Mouse

I cut the batting 12 1/2" by width of fabric, and loosely hand basted it to the backing, just to hold it in place during stitching and turning. I removed the basting stitches once I started quilting it. This worked pretty well, except the pointed ends are a little bulky, due to 2 layer of batting being stitched at that point (hence, the heavier quilting). I think spray basting would work well, and maybe trimming the batting to a point at the ends before turning.