Avenco 4 Inch Tri-Fold Memory Foam Mattress, Portable Folding Mattress Single with Removable Washable Cover, Detachable 3-in-1 Design for Guest Bed, Camping, Travel, 75"x25"x4", CertiPUR-US Certified is up for auction in Home & Kitchen. The current bid is $9.50, 86% below the $65.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.