Micro quilted: Encased in a deep micro-quilted fabric. Open coil: Features a 13.5 open coil bonnel spring. Six sizes: Choose from six sizes (see below). Mattress: Get a body contouring 3D wave quilted memory foam mattress. Hypoallergenic: With Hypoallergenic qualities. Mattress depth: 25cm. 3D Wave Quilted Memory Foam Mattress | Living Social | Living Social