A bed exit alarm sensor is a pressure-sensitive device placed under the mattress or bed sheet to monitor a patient’s presence in bed. When the patient gets up or shifts off the bed, the sensor detects the change in pressure and sends an alert to caregivers or monitoring systems. This device is especially useful for elderly patients or individuals with neurological conditions such as dementia, Parkinson’s disease, or balance disorders. It helps caregivers respond quickly and reduces the risk of nighttime falls or wandering.