7-Zone Pocket Spring Mattress, 90x200cm H3 with Comfort Foam, OEKO-TEX CertifiedReinforced Edge Support System utilizes high density foam encasement and additional perimeter springs to create a sturdy, supportive edge. This increases the usable sleeping surface by up to 20%, prevents roll off when sitting or sleeping near the mattress edges, and maintains consistent support across the entire surface for enhanced durability. Our OEKO TEX Certified Materials ensure all components (including springs, foam layers, and cover fabrics)