Sferra Giotto Sateen Bedding. Explore Sferra Giotto Bed Linens: Luxurious Sateen Cotton Duvet Covers, Bed Sheets and Pillow Shams. Sferra Fine Linens Bedding is a Luxurious, high-thread count cotton sateen with a luminous sheen. Sferra Giotto Hemstitch is crafted with a classic stitch and the Diamante Collection is made from Giotto Fabric and finished with a ribbon of Heirloom Lace. Mix and Match. You'll love Sferra Fine Linens Giotto Bed Linens.