Extended Data Fig. 1: Nocturnal breathing data collection setup.

a, Data from the breathing belt is collected by wearing an on-body breathing belt during sleep. b, Data from wireless signals is collected by installing a low-power wireless sensor in the subject’s bedroom, and extracting the subject’s breathing signals from the radio signals reflected off their body. c, d, Two samples of full-night nocturnal breathing from breathing belt and wireless signal and their zoomed-in versions.