WOLF Ultra Firm, Wrapped Coil Innerspring Mattress, Full, Bed in a Box, Made in the USA Contains a 6", 560 wrapped coil unit with fortified edge support that decreases partner disturbance Premium quality, ultra firm feel A Wolf bonded fiber pad for extra support Stretch knit cover with CertiPUR convoluted foam for comfort Made in the USA 336 high profile coil unit Foam encased border Internally made Wolf bonded posture pad for extra support Covered in a luxury stretch knit quilt fabric Made in the USA