Memory sprung mattress: Combine open coil springs with a luxurious memory foam layer (medium soft feel). Memory foam layer: Relieves pressure points and hugs your body shape in whichever position you sleep in. Cool Touch cover: With a micro quilted cool touch cover for ultimate comfort while sleeping. Hypoallergenic: Generously filled with anti-dust mite and hypoallergenic fillings for a fresh sleeping environment. Sizes: Small Single, Single, Small Double, Double and King. Sprung: With a European engineered traditional 13.5 gauge open coil Bonnell spring unit. Memory Sprung Mattress | Single | Living Social