Spring mattress: Get a quad comfort tufted spring mattress! Structure: A Bonnell sprung open coil mattress that's pressure relieving. Depth: Made in the UK and delivered rolled, with a 20.5cm depth once out. Filling: Made using deep quad comfort fillings for an extra soft and comfy feel. Cool-touch: With a cool touch sleep surface to keep you cool and comfortable. Size: Choose single, small double, double or king. Quad Comfort 8" Tufted Spring Mattress | Single | Living Social