Soft, breathable wool/bamboo top layer. Breathable wool and moisture-wicking bamboo offers superior moisture management, which helps regulate body temperature. Three luxurious layers of springs. Two layers of titanium alloy Aerocoil springs to encourage pressure relief, PLUS another layer of micro springs for optimum support. Cushioned sleep. Open structure Simbatex foam designed to offer enhanced airflow and more cushioned comfort. Edge-to-edge support. SupportCore spring base prevents roll-off at the sides. In specialist mattress factories. 3,800 titanium alloy Aerocoil micro springs nestle in the upper layers. You won’t be able to feel them, but they compress individually in response to your body, designed to support pressure relief while limiting transfer of movement to your partner. This luxury mattress also features our unique SupportCore Base, with 1,000 pocketed, barrel springs to ensure edge-to-edge support.