sinweek full size bamboo cooling 4 inch dual layer memory foam mattress topper with 2 inch gel memory foam & 2 inch pillow top mattress pad for pressure relief, rolled separately for faster expansion full 2+2 inch is up for auction in Home & Kitchen. The current bid is $8.01, 92% below the $94.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.