Hotel Collection by Shifman's Madeleine 13"" Luxury Ultra Firm Mattress is a two sided mattress that's meant to be flipped to refresh the sleeping surface and to extend the comfort life. Shifman's exclusive Sanotuft technique produces a smooth buttonless tuft that locks all upholstery layers in place which extends the comfort life of the mattress. Shifman's luxurious, handcrafted mattresses are made in the Usa, and built with the same commitment to quality, integrity and true craftsmanship that the company was founded on in 1893. Remaining true to its roots, this family owned company based out of Newark, New Jersey will continue its tradition of excellence in creating handmade mattresses.