EZ-Sleep

EZ-sleep is a sensor that monitors people's sleep and insomnia parameters using wireless signals. It transmits wireless signals to the environment. By analyzing the reflections, it learns the locations of beds, detects people's bed schedule, and estimates sleep parameters (sleep latency, wake after sleep onset, sleep efficiency, time in bed, and total sleep time). It can also monitor multiple people's sleep at the same time. It is zero-effort -- it does not require the users to wear any sensors or change their behaviors at all.

Paper & Slides

Zero-Effort In-Home Sleep and Insomnia Monitoring using Radio Signals
Chen-Yu Hsu, Aayush Ahuja, Shichao Yue, Rumen Hristov, Zachary Kabalec, Dina Katabi
The ACM international joint conference on pervasive and ubiquitous computing (UbiComp) 2017
[PAPER] [SLIDES]


Also check out

Self-Supervised Learning of Appliance Usage
Chen-Yu Hsu, Abbas Zeitoun, Guang-He Lee, Dina Katabi, Tommi Jaakkola
ICLR 2020
[WEBSITE] [PAPER] [VIDEO]

Enabling Identification and Behavioral Sensing in Homes using Radio Reflections
Chen-Yu Hsu, Rumen Hristov, Guang-He Lee, Mingmin Zhao, Dina Katabi
CHI 2019
[WEBSITE] [PAPER] [VIDEO]

Extracting Gait Velocity and Stride Length from Surrounding Radio Signals
Chen-Yu Hsu, Yuchen Liu, Zachary Kabelac, Rumen Hristov, Dina Katabi, Christin Liu
CHI 2017
[PAPER] [VIDEO]

Capturing the Human Figure Through a Wall
Fadel Adib, Chen-Yu Hsu, Hongzi Mao, Dina Katabi, Fredo Durand
SIGGRAPH Asia 2015
[WEBSITE] [PAPER] [VIDEO]

Smart Homes that Monitor Breathing and Heart Rate
Fadel Adib, Hongzi Mao, Zachary Kabelac, Dina Katabi, Robert C. Miller
ACM CHI 2015
[WEBSITE] [PAPER] [VIDEO1] [VIDEO2]

3D Tracking via Body Radio Reflections
Fadel Adib, Zachary Kabelac, Dina Katabi, Robert C. Miller
Usenix NSDI 2014
[WEBSITE] [PAPER] [VIDEO] [SLIDES]