colefunmit car rear seat mattress extension plate, portable mattress for sleeping, foldable back seat extender, increase travel trunk space and car bed camping space for car, suv, model y/3 (black) is up for auction in Automotive. The current bid is $1.00, 97% below the $31.89 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.