coolvie twin mattress 14 inch, hybrid twin bed mattress in a box, 4 layer premium foam with pocket springs for motion isolation and pressure relieving, medium firm feel, 100-night trial twin 14 inch medium firm is up for auction in Home & Kitchen. The current bid is $2.00, 99% below the $299.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.