The Cool Motion is an excellent quality adjustable mattress. Like all adjustable mattresses it has a slightly longer length at 6 ft 6 inches. The mattress is made up of a core of pocket springs that offer a firm support. The comfort is enhanced and slightly softened with 'Zero Gravity' memory foam to give the mattress a luxurious feel classed as a medium to firm tension. It is approximately 25 cm in depth with a tufted surface to help keep the fillings in place and the surface is finished beautifully in a soft knit stretch cover for the perfect night sleep.