kmfurnila tri-fold twin memory foam pads, 3 inch folding topper with washable cover, portable non-slip guest floor bed for camping travel – ideal for overnight guests, rv, and outdoor adventures 3" white twin (u.s. standard) is up for auction in Home & Kitchen. The current bid is $2.00, 95% below the $39.95 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.