Treat yourself to a night of luxury and silky soft comfort with the best sheets you'll ever own. The Sealy Premium Comfort Sheet Set is a 1250 thread count, luxurious modal blend fabric that offers a silky soft hand feel with a moisture wicking finish to keep you cool, dry and comfortable all night long. Generous stretch fit sides can accommodate mattress up to 18 inches deep. This set is machine washable and comes with the Sealy Certified Lifetime Warranty for peace of mind. This sheet set includes a flat and fitted sheet along with one or two pillowcases. Thread count determined by counting cotton yarns, separating and individually counting adjacent parallel polyester yarns, and adding those numbers together.