The indoor thermal environment and bed climate directly affect the sleeping thermal comfort of human head and the covered body, respectively. In order to analyze the matching relationship between the two thermal environment so as to meet the body's sleep thermal comfort level, the skin temperature of the subjects and the thermal sensation and thermal acceptability level of the subjects were recorded with various temperatures of bed climate and indoor temperatures. The results show that the thermal sensation is more sensitive to bed climate than to the indoor thermal environment during sleep. In addition, the comfortable range of thermal sleep environment is obtained through analyzing the relationship between the sleeping thermal environment and the subjective evaluations for partial and overall human body.