The Auto Logic™ 200 and 175 Mattress Replacement Systems and the Auto Logic™ 110 Mattress Overlay System is have been devised for the provision of automatic, self-setting therapy options with the facilities of an active transportation operation, powered by battery. The Auto Logic range is liable to prevent round-the-clock pressure ulcer, to manage all stages, along with patient specific monitoring, repositioning and also for wound care program. Self Set Technology™ (SST) is used in The Auto Logic pump to repeatedly evaluate the body mass distribution of patients or residents and to readjust cell air pressure to fulfill the exact requirements of them by making sure most favorable pressure area management.