SAF foam has a homogeneous cell structure with open cells with very strong cell walls. The open cell structure provides good ventilation in the mattresses, thus ensuring comfortable temperatures and humidity levels.
SAF foam is heavy, but compared to other visco-elastic foams it is light and very easy to handle because of its extremely high tensile strength. It does not fall apart even when handled and used without a cover.
Mattresses can be used with a PU-cover in hospital and nursing home environments for easy cleaning… but a PU-cover will always increase temperature and humidity levels in the contact area between body and cover, making the risk for skin damage higher and at the same time reducing comfort.