Magic Loft Down Alternative Mattress Pad is an Ultra-smooth 200-thread count 100% cotton mattress topper that has row upon row of individually-quilted squares. Each is hand-stuffed with . 7 oz. of lofty Perfect Puff Down Alternative polyester fiberfill for luxurious comfort. It dramatically increases the loft and comfort of your existing mattress. Fits mattresses up to 15″” thick. Cal-King 72″ x 84″.