Caresse 4550 Silver spring box is a luxury complete sleep system. The matress is built in in the box. Standard with 5 cm thick hr comfort foam topper. The 7-zone pocket spring mattresses are 22 cm thick and equipped with 270 springs per m2 and covered with 4 cm high quality comfort foam. The mattresses are available in two hardnesses and the covers can be washed. The matress topper is finished with double cloth with decorative stitching and 3-D edge ventilation and is completely detachable.