The Wellbeck Mattress is an open coil mattress which provides good support that is further enhanced by extra edge support. This extra edge support also helps prevent roll-off and means you can sleep right up to the edge of the mattress. Aside from the support this mattress is also comfortable, with layers of soft fillings that soften the open coil unit. This is a good mattress but as the price suggests it is at the lower end of our range. A soft damask cover which is micro quilted offers a smooth and comfortable sleeping surface. Few mattresses in this price range feature the extra edge support and that extra support is what sets this mattress apart from the competition at this price range. As with all Sleep Vendor mattresses this one is made to the highest standards and comes with a one year guarantee. Good levels of comfort, support and durability and all at an excellent price, you can't go wrong with the Ace Mattress.