This product is qualified with comfort, permeability and delicacy. Made from bamboo charcoal calcined in high temperature, it has unique healthy function. The released far infrared caneliminaterheumatoid, promoting metabolism,andimprovingthe blood circulation as well as blood andoxygen supplies to brain so as to reduce cervical fatigue,inhibit snoring and improve sleep quality,meanwhile,itpurifies the indoor air to calm down a person’s minds andeliminate fatigue by releasing anions to absorb smelly odor.