This Classical Hemstitch sheet set adds a touch of elegance to your bedroom while soothing you to sleep in 1000 thread count comfort. The cotton-rich blend of cotton and polyester - are a super-smooth sateen fabric which allows for virtually no iron care. The super soft fabric is easy care machine washable. 55%Cotton, 45% Sateen. Fully elastic corners on the fitted sheet, fit up to 18" mattress.