The open coil spring open memory foam mattress has a super soft deep micro-quilted cool touch top panel, the fabric is cosy on the skin cushioning the sleeper's body for a comfortable night's sleep. The breathable fabric allows the flowing of air to ventilate the mattress keeping it fresh, cool, and odour free for an excellent and relaxing nights sleep. The mattress has seven individual comfort layers, with an open coil 13.5 gauge Bonnell spring unit, which helps distribute the weight evenly across a large area of the mattress for overall support and comfort. The total depth of the base is 7" inch approximately 18cm. The mattress has a layer of open cell Memory Foam, relieving pressure from building and moulds to the sleeper's body providing a medium soft comfort. With our in-house technology the mattress will come vacuum packed, rolled and boxed for your convenience. Please allow 12 hours for your mattress to inflate back to its normal depth. Starlight Beds White Memory Foam Hybrid Sprung Mattress Size: Small Single