Google has introduced a new feature called Sleep Sensing on the second-gen Nest Hub which is an opt-in feature to help you understand and improve your sleep. Available as a free preview until next year Sleep Sensing uses Motion Sense (powered by Soli low-energy radar technology) to analyse how the person closest to the display is sleeping, based on their movement and breathing – all without a camera or wearable. Sleep Sensing can also detect sleep disturbances like coughing and snoring or the light and temperature changes in the room with Nest Hub’s built-in microphones and ambient light and temperature sensors, Google said in a statement on Tuesday. “We’ll also be looking for ways to work with Fitbit’s sleep-tracking features in the future,” said Ashton Udall, Product Manager, Google Nest. Sleep Sensing can also connect to your Google Fit app on Android and iOS devices, so you can see your sleep summary alongside your other health and wellness information.