The Uno Comfort Sleep Pocket 1000 mattress features 1000 individual pocket spring. These are designed to respond individually to movements while in bed, meaning you get the support where you need it. The Uno Pocket 1000 has a layer of durable and supportive high density foam on the sleeping surface. This provides extra support and a sumptuous and comfy feeling. This mattress is 19cm deep and has the added value of a foam encapsulated border. This means you get edge to edge support and can sleep to the edge of the mattress without the roll-off feeling. This mattress is available in a medium or firm tension