Need new sheets? Check this deal out! Tanga has the 400 Thread Count 100% Cotton Sateen Dobby Sheets for only $24.99 Shipped! This includes ALL Sizes which is awesome. You can choose from a few different colors too. This 400 thread count sheet sets are luxurious 100% Cotton Sateen. Each set contains a flat sheet, fitted sheet that will fit a mattress up to 15″ and two pillowcases.