Tanga has the 400 Thread Count 100% Cotton Sateen Sheet Set Starting at  only $16.99 Shipped!  You can choose your color and size. The twin size starts at that low price, but you can get a king for only $20.99 which is awesome. These 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.