The pressure array sensor, specifically the ESPC series, is a new product developed by Renhe Technology using the latest patented sensing technology. This product is created by integrating flexible functional materials into fabric, combined with high-precision capacitive detection circuits and advanced software algorithms. When applied to smart mattresses, it can visualize the pressure distribution of the human body on the mattress, enabling sleep posture and off-bed detection, mattress comfort evaluation, and pressure ulcer risk assessment. When paired with respiratory belts or heart rate monitoring, it can facilitate comprehensive health monitoring and generate sleep reports. The ESPC series sensors have been widely used in various fields such as sleep monitoring, smart wellness, and medical rehabilitation.