Eight Sleep sells a so-called smart mattress. Vibration detecting piezo electric sensors are packed into the mattress bedding.

Eight Sleep正在销售一款所谓的智能床垫，内置振动检测压电传感器。

To feel when the skin is touched, and he called this receptor piezo one and then he discovered piezo two, there are two of these receptors completely new family of receptors.

当皮肤被触摸时的感觉，他把这叫做 piezo 1，然后他又发现了 piezo 2，这两是全新的家族。