Sleep temperature is an important factor affecting sleep. The paper aims to design a three zone intelligent temperature control mattress based on sleep temperature curve to effectively improve users' sleep quality by adjusting sleep temperature in zones and periods. With the temperature recorder, the sleep temperature curves of different parts of the human body are recorded and drawn. According to the temperature requirements of different time periods and different parts of the human body during sleep, the mattress is divided into three areas:head-shoulder, trunk, and leg. The temperature is controlled by zoning and time periods, so that each area of the human body in any period during sleep is in the sleep temperature comfort area. Aiming at the three aspects of hardware, software and structure, the intelligent temperature control mattress is innovatively designed based on the principle of intelligence and humanization. The experimental results show that the mattress realizes high-precision zoning and time-division temperature control, and can adjust the temperature control period or heating and cooling adaptively according to user settings and device independent learning. The temperature control of the mattress is accurate, safe and efficient, intelligent and user-friendly, and can effectively improve users' sleep quality.