Proving the Business Case for the Internet of Things

Study: contact-free monitoring 92% accurate

William Payne
January 18, 2017
A research study has found that contact-free continuous monitoring for sleep disorders is 92 percent accurate compared to polysomnography (PSG), the testing process used in clinics around the world. The research studied contact-free monitoring technology developed by Israeli firm EarlySense to monitor sleep disorders. The peer-reviewed study, published in the December issue of the Journal of Clinical Sleep Medicine, found 92.5% agreement between LIVE by EarlySense and the PSG system.

The study, led by Prof. Asher Tal, Head (Emeritus) and founder of the Paediatric Pulmonary Unit and Sleep Centre at Soroka Medical Center - Faculty of Health Sciences, Ben-Gurion University of the Negev in Israel, evaluated EarlySense's Contact-Free technology for sleep monitoring. Eighty-five nights were compared using both EarlySense and a PSG system, in the sleep lab and at the subjects' homes.

"The results of this study confirm that the tested sensor is highly accurate in detecting sleep and wake states relative to polysomnography," said Prof. Tal. "Even under the most challenging conditions, with the subject sharing his or her bed with a partner, the sensor was able to accurately detect individual vital signs and sleep cycles in a non-invasive manner. This technology is well suited for continuous observation of patients in their natural environment."

The study noted the advantages of Contact-Free Monitoring when compared to other solutions, including smartphone-based apps that lack validation and actigraphy, which requires a device to be worn on the wrist.

The study also found that the EarlySense sensor, which is placed under a mattress, was not impaired by environmental factors such as mattress type or having a second person in bed.

"The results of this study are remarkable, highlighting the clinical accuracy of EarlySense's monitoring technology, which has been previously used by hospitals and is now being adapted for home use," said Dr. Zvika Shinar, Chief Scientist Officer of EarlySense. "Our technology empowers people to learn more about their sleep and monitor themselves at home in the most comfortable manner, without having to be hooked up to uncomfortable wires."