Mattress: Get a grey sprung seven core mattress. Top layer: Designed with a soft and cooling deep top panel. Sizes: Small single, single, small double, double or king. Memory foam: With a layer of visco-elastic memory foam. Exceptional layers of comfort: Helps to create even weight distribution. Moulding feature: Contours to user's body shape. Memory Foam Mattress | Grey | Single | Living Social