Memory Gel High Reacting Foam. Moulds to the contours of your body, providing comfort and support to key areas including back, hips and shoulders. Orthopaedic support foam topper. The foam spreads body weight evenly and provides improved pressure relief. 2 inches overall thickness. A great depth to transform your mattress and improve your sleep at such an affordable price. As with all our mattresses and toppers this product conforms to all British regulations. Arrives rolled. Please allow 72 hours, once unrolled, for the topper to fully expand. - Rest Relax Memory Gel High Reacting Foam Orthopaedic Mattress Topper, 5cm in Blue - Size: King