The King Biomat is the largest mat that Richway makes. The covering is made of a see through urathane that holds in the amethyst stones. Just like the queen size you can control the temperature on each side of the King Biomat. It comes with the cotton cover too. If you are using the Quantum Pad you probably won't need the quilted cover. The mat weighs 72 pounds. The amethyst stones weight 35 pounds. The King Biomat is:72.65" wide and 77.81 in length.
The fluence is much higher with the king size mat. You have much more energy output due to surface area of the heating element. I have the far infrared surrounding my body instead of just underneath me. Most people that get the king keep the mat on the bed and don't move it around like the single and professional sizes. I strongly recommend getting the quantum pad if someone is going to sleep on the King Biomat.
This is the cotton cloth that covers the Biomat.
RICHWAY BIOMAT KING
Call me at 1-303-500-3207 if you have questions about the Biomat before ordering. Ask for Chris or Sandra.