I was putting a minky back on a 100% cotton crib-sized blanket - no batting or quilting. I DID NOT cut the minky to size. I squared the cotton and pinned the minky to it -wrong sides together) LIBERALLY -pinned about every 2" - not just around the perimeter... I pinned in staggered rows the entire thing. THEN, when I was satisfied that it was adequate, I trimmed (squared) the minky to the size of the cotton side. NEXT, I sewed around all 4 sides, leaving about a 6-8" opening to turn. Before turning, I removed ALL pins & pressed the entire thing ON THE COTTON SIDE. After turning, I topstitched around all 4 sides, which also sealed the opening used to turn. Pressed again on the cotton side. It has held up well through washing & drying, even though there is no quilting or tying off, only the top stitching. Hope this helps.