dyonery King Mattress 12 Inch Charcoal Memory Foam in a Box, CertiPUR-US Certified, Fiberglass Free, Gel Double Mattress, Made in The USA of US Foam, 80" × 76" × 12", Medium is up for auction in Home & Kitchen. The current bid is $76.00, 79% below the $359.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.