Simba Hybrid Luxe Mattress - EU King

• Soft, cooling cover. A zip-off, washable cover with Stratos tech that prevents heat build-up, which means you can keep it fresh without wrestling the whole mattress. Hot sleepers should notice the difference on warm nights.
• Bamboo infused wool layer. British wool infused with moisture-wicking bamboo for better breathability. Wool naturally regulates temperature, so this layer helps in winter as well as summer.
• Fresh Simbatex foam layer. Simba's own foam with enhanced airflow and superior elasticity, which means cushioning that springs back quickly rather than leaving you feeling stuck.
• Two layers of Aerocoil springs. A double layer of patented microsprings arranged in thirteen supportive zones. These target parts of the body with specific needs, like your back, hips and shoulders.
• Stabilising core foam layer. A CertiPUR foam layer that provides structural support and extra airflow. It keeps the layers above it working consistently.
• Micro spring support layer. An extra layer of up to 900 high carbon steel microsprings for maximum support. This is where the mattress earns its medium-firm side.
• SupportCore sprung base. Up to 1,000 pocketed, tempered steel barrel springs giving firm, edge-to-edge support with no roll-off. That means you can use the full width of the bed, right to the edge.
• High-density foam base and cover. CertiPUR foam with a breathable cover made from recycled yarn. It gives the whole mattress its stability.

Layer details from simbasleep.com product page, September 2026.