... can feel cool in this situation. When the temperature is above 30 degree, it can absorb the body heat and ... driver, our product can help to slove this trouble.2.Bed sheet:Not any energy consumption,natural cool and refreshing , ... .This depends on our feeling.3.When the temperature is above 40 degree, the cooling feeling is not so good, ... ice pad and other company’s ice pad: pcm bed cooling cushion