Abstract: A patient support apparatus is disclosed that includes a support structure including a patient support deck defining a patient support surface, a charging interface, a sensor system coupled to the support structure, and a controller disposed in communication with the sensor system. The charging interface is operable between a first charge state for charging portable electronic devices where the charging interface generates an electromagnetic field and a second charge state where the charging interface at least partially limits generation of the electromagnetic field. The sensor system generates data representing changes in patient position on the support structure relative to a patient safety zone defined spaced from the charging interface. The controller is configured to change operation of the charging interface in response to the data generated by the sensor system indicating a sensed patient position outside the patient safety zone to at least partially reduce the electromagnetic field.