The 7 coolflex memorize memory mattress is a great way to get a value for money mattress with the deeply comfortable feel of memory foam also known as nasa visco elastic with a medium comfort feel the memorize uses traditional open coil bonnell springs to provide your sleeping shape with support over the springs there are generous layers of upholstery underpinning the memory foam memory foam gently spreads out as your own body heat sinks in to it forming a mattress surface that fits your body