Features: PREMIUM QUALITY Stretch Knit Fabric is Oeko-Tex approved which protects you from dust mites and allergens Foams are keeping you safe from harmful substances, dust mites, mould and its hypo-allergenic. Foams are high density, resilient and breathable keeping you at a comfortable sleeping temperature 2.3 Concave Coil Inner Spring brings a traditional feel with better support and air circulation to provide maximum comfort Specifications: Premium Quality Fabric Eco substance Certified Breathable High-Density Foam 2.3 Concave Coil Inner Spring Medium-Firm Certification: CertiPUR-US and OEKO-TEX Thickness: 17cm Double: 137 x 188 Package Content: 1X Mattress