Last Updated on March 31, 2024 by pg@petergamma.org Rob ter Horst with Polysomnography device 5 years ago Rob ter Horst with Polysomnography device 4 years ago Polysomnography device from Wikipedia: Polysomnography device from Wikipedia: Polysomnography Wikipedia from where the pictures are taken: https://en.wikipedia.org/wiki/Polysomnography why then he claims all the same the the Apple watch is … Continue reading Rob ter Horst knows Polysomnography since years – why then does he claim that the Apple watch is the best sleep tracker all the same?