According to the query of 39 Health Network, the use time of semi-circular bamboo pillows should not exceed 60 days at a time. When the temperature is above 30 degrees, this pillow can be used with a summer mat, which can make people fall asleep safely in a cool sleeping environment. If it is still used in spring and summer, it will easily lead to insufficient warmth and a cold.

Semi-circular bamboo pillow is a traditional pillow in China, which is usually made of bamboo and is semi-circular. This kind of pillow is cool, breathable and hygroscopic, especially suitable for use in hot summer.