The Natural cotton w/wool wrap mattress is an innerspring mattress construction featuring layers made with pristine cotton wrapped in all-natural French wool, covered in a soft brushed canvas fabric made with cotton, and artisan hand tufted to secure the filling materials in place and provide orthopedic support. Royal-Pedic has been handcrafting mattresses made with cotton since 1988. The Natural cotton w/wool wrap mattress is one of our most firm mattresses and is especially comfortable with one of our 2″, 3″, or 4″ Natural pillowtop pads creating a synergy of orthopedic firm mattress support combined with the surface plushness of the pillowtop pad. The Natural cotton w/wool wrap mattress features our Swiss-designed and USA-made Royal-Flex 650i innerspring unit. The spring system is double heat tempered to resist sag and provide longevity. The coils are an open-ended, double offset design with 6 turn wire to provide more flexibility to body contours. And we mount T-Spring side supports to the perimeter border wire of the spring unit to provide edge-to-edge sleeping comfort and support. The mattress is artisan hand tufted with European tufting straps to pre-compress the layers of padding for orthopedic back support, and to prevent shifting of materials for a consistent sleep surface. The Natural cotton w/wool wrap box spring features our H-2 box spring unit providing flexible, yet supportive modules serving as an extra layer of suspension for added comfort. The box spring’s upholstery is made with cotton wrapped in our French Wool. Even the underclothes on the bottom of the box spring is a fabric made with cotton.