¡E Knitted surface layer ¡V super comfortable knitted surface fabric¡EComfortable surface layer ¡V polymer latex ¡V bamboo charcoal breathable sponge ¡V Swiss sanitized? anti-allergic mite and antibacterial certification¡E Spring system ¡V three-zone independent pocket spring¡V Polypoint Support? System¡V High-density sponge around the edges¡E Certification¡V Swiss sanitized? anti-allergic mite antibacterial certification¡V CertiPUR-US? Certified by the American Foam Plastics Council ¡V OEKO-TEX? International Textile Safety Certification ¡V ISO 9001 Accredited by the Royal Accreditation Service ¡V Anti-reflection design¡ECompressed roll bag carton packaging, easy to transport