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