Product: Treat yourself to a Luxury Memory Spring Mattress today! Hygienic: Hypo-allergenic & dust mite resistant. Layers: Contains a layer of memory foam that adapts to your natural body shape.. Support: Features a 13.5 gauge open coil bonnell spring for added support. Ideal: For those who struggle to fall asleep, as it is a super comfortable and supportive mattress. Sizes: Available in 3ft, 4ft, 4ft6, 5ft and 6ft.