Enjoy out-of-this-world comfort with the Horizon Voyager Memory Mattress! This mattress features a firm, high-density foam foundation and an exceptionally deep layer of memory foam. At 10 centimetres deep, it's the thickest layer of memory foam around! The perfect marriage between support and comfort, this pressure-relieving mattress is a great choice if you need extra care for your back, knee and hip joints. Enjoy Free Next Day Delivery and a 10 Year Guarantee, too!