It’s pretty common, now, for patients to bring in a readout from a wearable device to an appointment with a sleep doctor. It’s helpful — it adds some objectivity to how many hours someone says they sleep at night, for example, Patil says. Khosla loves when patients bring in their wearable data. “I think we have to embrace it,” she says. “And it’s not all terrible data. Some of it is helpful.”