Scientists think it could help them better understand progression of chronic diseases like Parkinson’s, reports Smithsonian Magazine.

“After many such examples, the machine learns the radio frequency pattern associated with each sleep stage,” Katabi explains. “At that point, there is no need for more examples. The machine can be taken to a new home and used by a new person. Once it sees the radio frequency pattern, it knows how to map it to the corresponding sleep stage.”