gembed similar to gembed tri-fold memory foam mattress twin - 4 inch portable folding mattress with handle & washable cover, floor bed with non-slip base, space-saving for room, travel, guest bed, rv, 75\"x38\"x4\" black&wite twin size-4 inch is up for auction in Home & Kitchen. The current bid is $1.00, 99% below the $124.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.