This is not true. The Cocoonababy® nest is not made in visco-elastic foam. It is made from two different kinds of foam, one used for reactivity, the other for comfort. The products made in visco-elastic foam maintain the child in the position in which he is placed on them and are therefore to be avoided until the child has gained his own motor skills (around 4-5 months). The Cocoonababy® nest produces the opposite effect: it helps the child move his head and arms at an early stage thus gaining motor skills.