Heat-Retaining Warmer Extreme Fabric Designed with exclusive heat-retaining technology, this mattress keeps you warm and cozy during colder months, reducing the need for extra heating while preventing overheating for a comfortable sleep experience. Self-Heating Mattress for Winter Comfort The Warmer Extreme fabric naturally generates heat, maintaining temperature balance, wicking away moisture, and eliminating odors with its built-in deodorization treatment for a fresh, dry sleep . Hand-Tufted for Superior Comfort & Support Featuring cutting-edge dual comfort technology, this mattress provides five times more support and six times more comfort than traditional fillings, ensuring pressure relief and deep relaxation. UK-Handmade & Fire Safety Certified Expertly handcrafted in the UK by skilled artisans, this mattress meets BS7177:2008 Domestic Use fire safety regulations, guaranteeing premium quality, durability, and safety. Compact Packaging & Hassle-Free Delivery Vacuum-packed, rolled, and boxed for easy transport and handling, this mattress is delivered straight to your door, making it simple to move, unbox, and expand for instant warmth and comfort. - Starlight Beds Sleep Warmer Premium Tufted Mattress 20cm Deep Memory Foam Support in White - Size: King