PostureTech 660 Response Endorsed by Allergy UK for the reduction of house dust mites. Sealy Smart Fibres provide a Cool, Fresh, Dry and Hypoallergenic sleeping environment. A deep layer of Innergenic Latex for outstanding comfort and pressure relief. Eco-friendly Tencel fibres help keep you cool and dry. Correctly supports and aligns the spine in its natural shape, helping to reduce aches and pains. The perfect environment for cool, dry sleep. Sealy Edge Guard provides edge-to-edge support for greater durability and comfort.