A great value mattress from Silentnight, designed to offer comfort, support and pressure relief. Featuring Mirapocket technology with 800 individual pocket springs.The advanced zoned Mirapocket spring system offers the ultimate in comfort. Each mattress with Mirapocket technology contains individual springs that are held under tension in their own fabric pockets. Each spring responds to your body, spreading your weight evenly across the bed providing zoned support where you need it most and luxurious, tailored comfort that is second to none. Our Mirapocket spring system will also offer the following benefits:Offers various spring to meet your individual comfort needs, allowing you to find your perfect comfort solution for a great night\'s sleep.Individual responsive spring system providing zoned support.Pressure relief for a comfortable night\'s sleep.Edge to edge support providing more personal sleep space.With plump filling layers and a beautifully soft knitted mattress cover for extra comfort and a hypoallergenic finish. A medium firm comfort rating means this mattress is a good choice for those who switch between sleeping on their back and side.Please note, unfortunately we cannot deliver this item to the Channel Islands.* For health and hygiene reasons, we are unable to offer refunds or exchanges on mattresses unless they are returned unused and in their original packaging. For more information please see our Easy Returns section.For more information on different mattress types, please visit our Mattress buying guide. [Click here for more information.](https://www.dunelm.com/info/buying-guides/mattresses-and-mattress-toppers-buying-guide)[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.