Home Slickdeals Sealy Posturepedic Optimum Latex Gel Mattresses: Twin XL $299 / Queen $349... Slickdeals Sealy Posturepedic Optimum Latex Gel Mattresses: Twin XL $299 / Queen $349 / King $499 – Free Shipping @ Wal-Mart By ARCOM - 19 July 2018 675 0 SHARE Facebook Twitter Go to the deal page: Sealy Posturepedic Optimum Latex Gel Mattresses: Twin XL $299 / Queen $349 / King $499 – Free Shipping @ Wal-Mart