dumos mattress toppers memory foam california king, 4 inch thick bed topper pad cooling gel infused soft comfy breathable for sleeper sofa couch rv camper, certipur-us certified, blue blue 4 inch-california king is up for auction in Home & Kitchen. The current bid is $1.00, 99% below the $99.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.