Hello, We are selling our queen sized Sultan Hansbo mattress from Ikea that we purchased in January of 2015. This is a great and very comfortable mattress with memory foam topper, and we are only replacing because we received another mattress as a gift. We paid $399 and are asking $300 since it is less than a year old. Ikea Sultan Hansbo Mattress: http://www.ikea.com/us/en/catalog/products/60206890/ Thanks! Flavia