Designed by sleep experts the JT Bolster Inframat Pro® is made for optimal comfort and tension relief. The outside is lined with jade and tourmaline gemstones that press into your neck to release tension. Not only can it ease neck discomfort, but it will also help reduce pain in your shoulders and upper back. Your neck, shoulder, and body will feel refreshed after each use. The heat activates the gemstones to release penetrating far-infrared rays and negative ions. With all the added benefits of jade and tourmaline, you will have revitalizing sleep experience. Relax your muscles, reduce pain and tension, and improve circulation in targeted areas with the JT Bolster. *Due to a medical-grade silicone glue it does smell when heated Features/Benefits: Jade gemstones Tourmaline gemstones Relieving stone therapy Low-level Negative Ion Therapy Low-level Far Infrared Rays Therapy Reducing stiffness in your neck Providing support overnight in bed Supporting your head while using a mat Place behind the knees while using a mat