Egyptian Cotton Blend Wrinkle Free Sheets 70 percent cotton 30 Percent Polyester * King set includes flat sheet 110X102", fitted sheet 78X80" and fits up to 18" mattress, and 2 King pillowcases 20X40" * 100% Luxury and Silky Soft Sheets . Sateen Weave, Single ply . * Fits mattresses up to 15-18" deep Pocket with elastic all around the fitted sheet * Machine wash in cold water with similar colors. Warm iron when necessary. Tumble dry low. Do not bleach