New Delhi, Sep 23: A team of IIT graduates has developed an artificial intelligence (AI) powered sensor sheet that can be put under the mattress to detect indicators such as heart health, respiration, sleep, and stress with medical grade accuracy. The device works on a technology known as Ballistocardiography (BCG), which involves measurement of the movement of heart. BCG can be extended to find movement, breathing and snoring. "Our advanced algorithms have been trained over billions of data points to achieve 98.4 per cent accuracy in measuring heartbeat and respiration. The device is a contact-free health monitor and personal health companion," Mudit Dandwate, an alumnus of Indian Institute of Technology (IIT) Bombay, told PTI. "It is a thin sensor sheet that goes below the mattress and tracks heart health, respiration, sleep, stress with medical grade accuracy. Basis tracking their health data, there are experts that provide personalised health improvement plan," said Mudit, co-founder of Dozee.