Most people spend about 25% to 33% of their lifetime sleeping. Since sleep quality strongly correlates with productivity, mood, and hygiene, sleep technology—specifically wearables—has a booming market presence.
Different types of sleep monitoring technology. Image used courtesy of Perez-Pozuelo et al. and Nature
In contrast to polysomnography (PSG), the clinical gold-standard method to assess sleep, wearable sleep technology falls under the category of consumer sleep technology (CST). For electrical engineers, CST entails an integrated system with low power consumption, significant processing capability, and miniaturized board space.
Companies including Google, ResMed, EarlySense, and Fitbit are actively working to develop such devices. Now, Google claims a new radar chip with built-in sleep analysis capabilities may be the key to more widespread CST adoption.