A system for predicting exit from an occupant support, the system comprising: a processor; a memory in communication with the processor; a frame having at least one force sensor which outputs a force signal in response to force exerted thereon; and machine readable instructions stored in the memory which cause the system to perform at least the following actions when executed by the processor: determine a property of the signal during an interval of time; classify the property as suggesting an exit event or as not suggesting an exit event; and if the property is classified as suggesting an exit event, generate a notification thereof; wherein the classifying step comprises: a) comparing the property to an exit criterion; and b) if the property matches the criterion, classifying the property as an exit event; wherein the signal is in the form of or is converted to digital samples: characterized in that the property of the signal is the mean frequency, median frequency, peak frequency, standard deviation of frequency, and mean energy; and the exit criterion to which the property is compared is a mean frequency criterion, a median frequency criterion, a peak frequency criterion, a standard deviation of frequency criterion, and a mean energy criterion respectively; and in that the notification is generated only if the mean frequency, the median frequency, the peak frequency, the standard deviation and the mean energy all match their respective criteria. a processor; a memory in communication with the processor; a frame having at least one force sensor which outputs a force signal in response to force exerted thereon; and machine readable instructions stored in the memory which cause the system to perform at least the following actions when executed by the processor: determine a property of the signal during an interval of time; classify the property as suggesting an exit event or as not suggesting an exit event; and if the property is classified as suggesting an exit event, generate a notification thereof; wherein the classifying step comprises: a) comparing the property to an exit criterion; and b) if the property matches the criterion, classifying the property as an exit event; wherein the signal is in the form of or is converted to digital samples: characterized in that the property of the signal is the mean frequency, median frequency, peak frequency, standard deviation of frequency, and mean energy; and the exit criterion to which the property is compared is a mean frequency criterion, a median frequency criterion, a peak frequency criterion, a standard deviation of frequency criterion, and a mean energy criterion respectively; and in that the notification is generated only if the mean frequency, the median frequency, the peak frequency, the standard deviation and the mean energy all match their respective criteria. determine a property of the signal during an interval of time; classify the property as suggesting an exit event or as not suggesting an exit event; and if the property is classified as suggesting an exit event, generate a notification thereof; wherein the classifying step comprises: a) comparing the property to an exit criterion; and b) if the property matches the criterion, classifying the property as an exit event; a) comparing the property to an exit criterion; and b) if the property matches the criterion, classifying the property as an exit event; wherein the signal is in the form of or is converted to digital samples: characterized in that the property of the signal is the mean frequency, median frequency, peak frequency, standard deviation of frequency, and mean energy; and the exit criterion to which the property is compared is a mean frequency criterion, a median frequency criterion, a peak frequency criterion, a standard deviation of frequency criterion, and a mean energy criterion respectively; and in that the notification is generated only if the mean frequency, the median frequency, the peak frequency, the standard deviation and the mean energy all match their respective criteria. characterized in that the property of the signal is the mean frequency, median frequency, peak frequency, standard deviation of frequency, and mean energy; and the exit criterion to which the property is compared is a mean frequency criterion, a median frequency criterion, a peak frequency criterion, a standard deviation of frequency criterion, and a mean energy criterion respectively; and in that the notification is generated only if the mean frequency, the median frequency, the peak frequency, the standard deviation and the mean energy all match their respective criteria.