Orthopaedic Bonnell Coil Sprung Mattres FR 250gsm White Knitted Fabric with same quilting design 1cm High density comfort reflex Foam 2.7cm High density wave foam layer 3cm medium density foam Layer Black pads on top and bottom of bonnell Spring Bonnell Spring - 2.45mm Wire gauge 18cm Height FR Stitch bound bottom Promotes a Cooler Nights Sleep Traditional 13.5 Open Coil Bonnell springs designed for durability Mattress depth 10" - 25cm Dust Mite Resistant & Hypo-Allergenic Responsive 40KG/M3 Reflex Foam Contours to your body's natural shape Relieves points across the body Promotes good blood circulation Medium Comfort Rating Suitable for any UK type of standard size bed base May come vacuum packed or rolled Mattress Colours and Stitching may vary Fully compliant with all UK fire regulations BS7177 Proven Benefits of Memory Foam To Your Body | BSSPOKE Unisex 10" Bonnell Spring Mattress Rolled Up Density Foam Medium Firm in White | Size: Double