This mattress is available as Medium Firmness. Sealy’s Posturepedic Ultra Superior has all the features that have made it the world’s favourite mattresses. This model now benefits from Sealy’s unique ‘Triple Offset’ sprung mattress. The springs, with a unique hinging action, give proper underlying support across the entire sleeping surface from edge-2-edge. Edge-2-edge comfort and support. What does it mean? Without getting too technical, it’s a feature that no ordinary bed can boast. Running around the perimeter of every Sealy Posturepedic mattress is a firm steel rod to which each of the outer springs is power clipped. So what is the benefit? In essence, every square inch of every Sealy bed gives maximum comfort and support across the entire sleep surface. This effectively creates more room to spread out, relax and enjoy a more comfortable night’s sleep. And nothing makes this more possible than Sealy Posturepedic, the world’s favourite bed.