if you use flannel on the back you will have a nice *fluffy* raggy edge...fleece does not fray. I've made many of these I generally use scrap batting in the centers, flannel back, (or on one awesome one corduroy) and denim top. quilted/stitched across each 'sandwich' sewed them together with a 1/2" seam and clipped...they are warm, heavy quilts and some of the family favorites.