Mattress: Get a cool gel memory foam quilted sprung mattress. Depth: Approximately 19cm thick deep with a layer of responsive cool blue memory foam which contours to your body's natural shape. Comfortable: Features an open coil bonnell spring and uses a four way stretch fabric for extra comfort. Support: Designed to support your body, relieve pressure points across the body and promote good blood circulation. Sizes: Valid in single, small double, double, king or super king. Medium firmness: Perfect for side or front sleepers, plus it's suitable for allergy sufferers as the foam is anti-microbial and dust mite preventative. Cool Gel Memory Foam Sprung Mattress | Blue | Single | Living Social