A firm and supportive yet supremely comfortable mattress available with either open coil or pocketed spring unit and a generous layer of visco elastic memory foam open coil details middot 13 gauge double heat treated open coil spring unit middot flag stitch handles for ease of lifting middot ventilators to help the mattress breathe middot thick layer of high grade visco elastic memory foam middot hand tufted and finished with felt washers middot smart belgian damask cover pocketed