Featuring a 3-phase Trizone spring unit, the Airsprung Portland Trizone memory mattress provides extra support to the lumbar region (the bottom of your back). The double mattress also features an insulator pad with a deep layer of white polyester filling, plus a layer of memory foam. This luxurious layer moulds around the contours of your body to offer medium firm support.
With a soft knitted panel on the sleeping surface and a quality damask material on the borders, the Portland Trizone memory mattress has 4 breathable vents to promote air circulation. It also features 4 flag stitched side turning handles for easy maintenance.