The 5-zone design of the mattress provides both pressure-relief and support. The mattress has been designed using traditional bonnell-spring construction finished with several layers of high-density foam. The cool-touch quilted cover and the breathable upper memory foam layer ensures that heat does not get trapped for the maximum in comfort. The upper foam layers have been designed to adjust to the body and provide a customised and relaxing sleep surface, while the lower bonnell spring layer has been designed to offer long-lasting support. Bulky items will attract extra cost. You can then decide to pay for the postage or cancel the order.