South Bay BioPosture 12" iSwitch Flippable Mattress - Medium Firm / Medium Soft

The South Bay BioPosture 12-inch iSwitch flippable mattress offers two comfort choices in one design: medium firm on one side and medium soft on the other. Flip the mattress to choose the surface you prefer. This BioPosture edition uses its own 12BIOP manufacturer SKU family, distinct from South Bay's standard iSwitch model.

Construction

• 2 inches of gel memory foam
• 1 inch of gel-swirl memory foam
• 6-inch Air Grid support core
• 3 inches of gel memory foam on the reverse comfort side
• Reinforced edges and a removable washable cooling zip-off cover

Compressed and rolled for transport. Includes South Bay's ten-year limited mattress warranty, subject to its terms. Paired split configurations are separately identified by manufacturer set SKUs; confirm the exact selected configuration before ordering.

Manufacturer split sets: Variants carrying -SET SKUs are separate manufacturer configurations, not ordinary single EKS/CKS components. Packaged-set options are currently unavailable for online purchase. A split Eastern/regular King ordinarily consists of two Twin XL pieces; please contact us before choosing a packaged arrangement.

Shipping: Standard carrier shipping within the contiguous United States is included in the advertised selling price. Supplier availability may change.