Egyptian Cotton 300 Thread Count Sateen Twin Sheet Set (Twin, Grey) Egyptian Cotton PERFECT FIT SHEETS: Deep tailored pockets create a snug fit on your mattress up to 12", with fully elasticized fitted sheet with elastic that goes all around the fitted sheet. SUPER-SOFT EGYPTIAN COTTON: 100% luxurious long staple cotton fibers. Our 300 Thread Count Egyptian Cotton sheets are known for both comfort and elegance. Featuring longer Egyptian Cotton fiber length to provide more softness than standard cotton- offering a cool, breathable, and relaxing night's sleep. 300 THREAD COUNT: Thread count is calculated by the number of thread in one square inch of fabric. Higher thread count results in thicker and more durable fabric. EASY CARE: Easy care sheets are machine washable and require no ironing. Machine wash and dry on tumble dry low. Softness increases with each washing.