https://www.cnet.com/news/moona-controls-your-pillow-temp-for-better-zzzs-ces-2019/

In addition to acting as a water pump, it has built-in sensors that are supposed to keep an eye on ambient light, temperature and humidity in the room. It's Bluetooth enabled too, so it can connect to the Moona app. 

The pump looks like a smart speaker, but it's designed to send water to Moona's pillow pad. The pillow pad consists of a plastic layer that holds the water. It doesn't sound very cozy, but Moona says the plastic is "surrounded by memory foam for comfort." A motion sensor on the pad is supposed to monitor your sleep.