Heiki Raisanen, CEO of Emfit, displays their QS sleep tracker device meant to be placed under mattresses (tested up to 30cm thick). Using quasi-peizoelectric and ferroelectric sensors in the belt, it detects/displays heart rate, breathing rate, and sleep quality amongst other factors on the accompanying app. It is available now in US and Europe for US$299.
For more information visit : www.emfit.com
