Built with an advanced heat system and natural gemstones, the Mesh JT Mat Extra Large releases a steady flow of far infrared rays and negative ions to facilitate superior wellness management. This mat uses round gemstones that dig into and activate the pressure points in your body to stimulate relaxation. A durable mesh lining holds the 210 jade and tourmaline gemstones in place rather than the usual synthetic leather exterior. As a result, this mat has enhanced flexibility that makes it more versatile in the ways it can be used. The extra large size makes this the ideal mat for people taller than 6 feet and for those that wish to have more room to move around while they sleep. Choose the temperature you are the most comfortable with the exact degree, and set an automatic shut-off timer to improve your overnight sleeping experience.