With 12200 advanced technology springs and the option of a further 2500 pocket springs in the True Edge Base, the Santiago offers outstanding support to suit every kind of shape and sleeping pattern. A combination of the core Posturfil and Revolution springs are topped with naturally absorbent layers of wool, mohair and Egyptian cotton for luxurious comfort. A layer of natural latex close to the ChemFRee fabric of the sleeping surface cradles the body and eases pressure points.