Our memory foam mattress Features: 1) 100% cotton cover, allows proper lows proper circulation of air around your body, dust mite resistant, non allergenic 2) 3" of 5.3lb density NASA engineered viscoelastic memory foam 3) Evenly distributes and absorbs weight to help relieve body pressure 4) Contours perfectly and molds to your body 5) Superior pressure relief reduces back pain 6) Created correct spinal alignment 7) Promotes deep REM sleep 8) Relives joint and neck pain Base Foam Support System: 1) Extra firm support 2) Never sags or needs turning 3) Superior formulation for unsurpassed durability 4) Highly resistant against body impressions 5) Guaranteed to never flatten out Packing: vacuum packed mattress: 37 x 37cm