Hello Sleep Mattresses offer the latest technologies and will aid a better night’s sleep. So with a range of 3 beautifully crafted mattresses that are made in oxfordshire you are not only purchasing a British made mattress you are buying a product that will help induce sleep. It has the the benefit of pocket springs, Nasa technology Foam Outlast and cool barrier fabrics as well as the 3D a... Read more >ir mesh border on the mattress that helps make the mattress 47% cooler than standard memory foam, as well as giving you excellent support. For best results mattresses should be on a hard or slatted base with slats no wider than 7cm apart. All 3 mattresses have 7cm layer of Vystex 72kg High density memory foam and are offered in 4 sizes and come with a 5 year guarantee and 5 year warranty.