Combining memory foam with a 13.5 gauge open coil spring unit, the Sofia Memory Foam Mattress is a great choice for any bed. Further features include a memory stretch cover with grey border & a tufted top finish. Memory foam is designed to conform to the body, providing support for pressure points & encouraging correct spinal alignment while you sleep. Denser than normal foam, it adjusts to your body to create the ideal sleeping surface. This mattress arrives vacuum packed & rolled for ease of movement. Once unpacked, simply give it a few hours to fully expand & settle! Please note, unfortunately we cannot deliver this item to the Channel Islands.[ Click here] (https://www.dunelm.com/infodocs/downloads/ Furniture-Sizing-Guide.pdf) to check out our handy sizing guide to help you find out if you’ll be able to get your new mattress into your home.