Hello,Thank you for reaching out and sharing your concern with us. I’m truly sorry to hear that the product didn’t meet your expectations and that you’ve had an issue with the fit of our sheets. We understand how disappointing that can be.We wanted to share he 500TC Sheets are made with natural cotton and has enhanced softness because of the lyocell material being used in our product. The flat sheet, fitted sheet, and pillowcases are 65% Cotton and 35% Lyocell. While the side panel of the fitted sheet is 100% Polyester.We appreciate your understanding and thank you for being a valued member of Sam's Club.