The Beddit Sleep Monitor tracks patients’ sleep accurately without any disturbing wearable sensors. Patients can sleep directly on the sensor and it will measure heart rate, respiration, sleep cycles and sleep time. Beddit Sleep Tracker is based on ballistocardiography (BCG), a measure of ballistic forces on the heart. During the night, an ultra-thin force sensor measures sleepers night time activity unobtrusively, without any wearable sensors.