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  | Spring Air Back Supporter Merit Luxury Firm California King SetProduct Description Sleeping together should be bliss, regardless if one of you is petite and the other full-bodied. No matter what your body type is, you are completely supported on the Spring Air Back Supporter® Merit Luxury Firm mattress because it has been designed with the famous Back Supporter® Activ-Coil zoned innerspring with Dual Performance Edge Support that has been clinically proven to relieve back pain, along with multiple layers of extremely comfortable ComfortFlex® Foam. You’ll never have a bad night’s sleep again. Comfort Features Luxuriance Plus Antimicrobial fibers in quilt, Comfort foam in quilt, Conforma® Zone foam in upholstery, Comfort foam in upholstery Support Features Higher 7" profile coil, Stronger 13 3/4 ich tempered steel, Dual performance edge cups, Zoned construction, 4 layers of ComfortFlex Foam, Zoned Activ-Coil Innerspring, 450 coil count Durability Features Extended Life Foundation Manufacturer Warranty Information |