Product: Improve the quality of your sleep with this luxurious traditional memory sprung mattress! Sizes: Available in 3FT, 4FT, 4FT6, 5FT and 6FT. Layers: Exceptional layers of comfort, helping to create even weight distribution. Support: 13.5 gauge open coil bonnell spring for added support. Features: Hypo-allergenic and dust mite resistant.