The Sealy Nostromo medium-feel super king size mattress has a micro-quilted luxury pillow top with 1400 individual Posture Pocket springs. The soft knitted fabric incorporates both eco-friendly Tencel to keep you cool, fresh and dry and Sealy Smart Fibres for the elimination of house dust mites. A deep layer of Innergetic Latex provides outstanding comfort and pressure relief while the Zonal support system correctly supports and aligns the spine in its natural shape, helping to reduce aches and pains. The Patented Sealy unicase is designed to protect the pocket springs and stops the mattress from sagging, therefore helping to prolong the life of the mattress. Endorsed by Allergy UK. Made in the UK. 5 year manufacturer’s guarantee.