sinweek similar to sinweek 2 inch mattress topper queen size, soft memory foam for back pain relief, breathable bed topper with grey cover, certipur-us certified queen 2 inch is up for auction in Home & Kitchen. The current bid is $1.00, 99% below the $79.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.