Thickness soft support, you hardly notice under the sheet. Decisive for us was that you can not plan and do not sweat "zufoliert" the expensive mattress. Whether she is staying Pipiunfälle I do not know. For us it has been once broken and it has held up well (our son is 16 months and like to eat, as occurs in the gastrointestinal quite well what out). If the Pipizeit begins, we will nevertheless a waterproof cloth Molto cross put over it so that the Poporegion is waterproof covered.