Three-layer support: Features a medium-firm structure with three layers of OpenCell foam for pressure relief, durability, and contour-hugging comfort. Perfect for every sleeper: Designed to suit all sleeping positions—back, front, or side—ensuring personalised comfort for everyone in the family. Breathable hypoallergenic cover: The removable PolyBlend cover enhances airflow and helps regulate body temperature while keeping allergens at bay. Available in 8 sizes: Choose from UK and EU options including Single, Double, King, and more to suit any bed frame. Cooling gel-infused foam: Enjoy nights as crisp as Christmas air thanks to a 2.5cm gel-infused comfort layer that fights overheating. Optima gel comfort: Experience cool, balanced sleep with the Optima 20cm Gel Memory Foam Mattress, designed for total body support and year-round comfort. Smart delivery: Arrives vacuum-packed and rolled for easy transport—simply unbox, unroll, and let it expand for 24-48 hours. Pressure-relieving design: Adapts to your body shape to reduce stress on joints, ease back pain, and promote healthy spinal alignment. Certified quality: Made in the UK to BS7117 Fire & Safety Standards, with Oeko-Tek 100 and CertiPUR certified materials for safe, chemical-free sleep. 3-year festive warranty: Sleep merry and bright for three Christmases, worry-free.