The families of seniors who live alone can stay in touch with WellAWARE and BeClose monitoring systems that rely on unobtrusive passive sensors placed on beds, chairs, walls, windows and doorways to track sleep cycles, daily activity patterns and home security. If, for example, somebody is going to the bathroom more frequently than normal or a window is left open, sensors can notify doctors and caregivers to intervene before a health or safety problem arises. For more information, see WellAWARE Systems and BeClose.