The Silentnight Tranquillity 1000 Geltex Pillowtop mattress is ideal for twisters and turners. Silentnight's Geltex technology is an intelligent gel infused comfort filling with a bounce back sensation that actively responds to your body as you sleep. It's incredibly flexible and moves as you move, providing your body with optimum pressure relief so you can say goodbye to those niggling aches and pains. The breathable open cell structure helps to prevent you from overheating, so you wake up feeling energised and ready for the day.