The battery-powered Bluetooth sleep monitor uses imported PVDF sensors. Based on the BCG monitoring principle, it monitors the vibration signals caused by human limb movements, chest expansion and contraction, and heart pumping. The sensors convert these signals into electrical signals, which are then processed and analyzed by algorithms through amplification and filtering to detect data such as heart rate, breathing, body movement, and snoring. The device connects to a gateway or mobile phone via Bluetooth communication to upload data to the user’s phone or server.