Health & Hypoallergenic Mattress - 100% comfortable and 3D breathable fabric of natural ecological fiber, completely environmentally and friendly. Anti-biosis, Anti-odor, Anti-allergy, Anti-mites. Expel the steamy sweat from the contact surface between you and mattress so to keep body comfortable and dry when sleeping. (High quality material; Height (Thickness): 18 cm,Stainless steel spring 16cm + 0.5cm 50D Memory foam + 1.5cm 20D Foam.) Excellent Texture + Memory Foam - Feature memory foam that offers body-moulding comfort and soothing pressure relief. High density knit layers, highly attuned to the skin. Provide velvety, snug sleep, helps you get into deep aerobic sleep quickly. Scientific Design - Spring systems that are scientifically proven to align the spine and directly combat back aches and pains, each reflecting specific pressure points on the body - and evenly distributes your weight while aligning your spine. Perfect memory foam sprung mattress for you. LUNO FASHION LIMITED Mattress Size: Small Double (4')