The Slumber Express Ortho Back Aid Pillow Top mattress is manufactured by Wolf Corporation. Wolf Corporation is the oldest mattress manufacturer in the United States under continuous family ownership! Made in the USA! Unbelievable value! Mattresses are compressed, rolled, boxed and shipped for ease in shipping and installation! The Comfort Plus Back Aid Pillow Top mattress is a no flip mattress with a cushion firm feel. The elegant damask cover is multi quilted with Wolf"s own "Aero life" fiber and a layer of Dura foam. It features sta-rite inner quilted fiber plus a layer of 1" foam with a hi-profile 288-coil innerspring. Orthopedic firmness, pillow top comfort.