SLEEP MONITORING BASED ON WIRELESS SIGNALS RECEIVED BY A WIRELESS COMMUNICATION DEVICE

In a general aspect, a wireless communication device operating as a client in a wireless communication network receives wireless signals transmitted from an access point of the network. The device generates channel information from the wireless signals and processes the channel information to identify a degree of motion and average breathing rate of a person. Upon determining that the degree of motion and average breathing rate are below respective thresholds, the device begins sleep monitoring. Sleep monitoring includes generating additional channel information that is processed to identify a category of sleep.