Janssen Pedic is a medical mattress with no springs. The base is compressed rebonded foam at density 90, which gives a firm, even surface with no sinking.

What sets it apart from other medical mattresses is a 4 cm layer of density 70 memory foam over the rebonded base. You get the firmness of a medical mattress underneath, while the memory foam eases pressure on the shoulder and hip on top.

That is exactly the problem most people have with medical mattresses: they are very hard on the shoulders.

It is still a firm mattress. If you like to sink into your mattress, this is not it.