I ordered the foam for crafting fabric-covered foam cubes. Dimensions: 8 x 8 to 24 x 24cm. The material has a pleasant resistance and slip in several layers apart not superimposed. After tinkering was still plenty of foam on (140 x 100 cm) and we use the now. As a mattress in the comfort zone You sit there very comfortable and even as an adult very soft. You could fall asleep smoothly ... :-) With increased demand I know where I nachkaufe!