Luxurious soft 1500 thread count linens. Each set comes with 4 pieces that include: 2 pillow cases, 1 large flat sheet, 1 mattress cover. Our sheets are a cotton-polyester blend, this is preferred to keep your sheets from pilling over time, shrinking, & wrinkling. They take 20min in the dryer and the colour stays brilliant wash after wash. Our sheets will fit Standard, Pillow Top, and Oversized Mattresses, because our pockets are deep fitting and stretch up to 22 inches.