Featuring 800 individually pocketed springs from edge to edge, the Sleepsoul Comfort 800 Pocket Mattress will conform to your body's shape, supporting you where you need it most & preventing roll-together. This mattress comes vacuum packed & boxed for ease of transport. Once in the room of your choice, remove packaging & the inner plastic wrap & wait at least 2 hours for the mattress to settle. In 2 hours it's good, in 24 hours it's great! Please note: Spring count refers to 5ft (kingsize) model. Dimensions: Single: W 90cm x L 190cm x D 23cm Small Double: W 120cm x L 190cm x D 23cm Double: W 135cm x L 190cm x D 23cm King: W 150cm x L 200cm x D 23cm Please note, unfortunately we cannot deliver this item to the Channel Islands.* For health & hygiene reasons, we are unable to offer refunds or exchanges on mattresses unless they are returned unused & 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-&-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.