Twin Mattress for Kids, 4” Inch Twin Bed Mattresses in a Box, Gel Memory Foam Mattresses for Cooling Night Sleep, Pressure Relief, CertiPUR-US Certified is up for auction in Home & Kitchen. The current bid is $11.50, 84% below the $73.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.