If you long for a softer or more flexible sleeping surface then choose the airsprung quattro divan with spring mattress the gently supportive airsprung quattro divan is provided with platform top base for slightly firmer feel the quattro mattress features open coil construction with 135 gauge duraspring spring unit system to bring a soft and luxurious feel for a superior night sleep the additional features are damask fabric ticking attractive quilted design and cloth handles to allo