Experience the cooling effects of optimised temperature control and the total body support of advanced foam layers in one perfectly engineered design: the Emma Helix Hybrid Mattress. Product Details Mattress type: Hybrid Pocket Sprung Depth: 23 cm Weight: 15kg Firmness: Medium Fillings: HRX foam with grooved core, adaptive Visco foam, Helix foam with continuous zoning and a pocket spring core Cover: 99% polyester, 1% elastane Sizes: Super king, king, double, small double, single Requires turning: Yes. Turn from head to foot Features Perfect for restless sleepers looking for a medium-firm mattress with optimised temperature control 100 night sleep trial 10 year guarantee Advanced helix foam with continuous zoning provides excellent body support Airflow vents ensure exceptional breathability and regulate temperature Adaptive Visco foam and HRX foam offer precise body contouring and pressure relief Fully removable premium cover with handles and washable up to 40C Anti-slip coating on the underside of the mattress