Grounding Sheets Queen Deep Pocket Organic Cotton with Silver Fiber, Grounding Fitted Earth Sheets with Grounding Cord (Lake Blue, King - 76"x80"x15") The grounding sheets are made of organic cotton and silver fiber. Both silver and cotton are pure natural materials. The two materials are blended according to a certain ratio. They have good conductivity and are very soft and comfortable, and are very skin-friendly. The interlaced silver fibers can maximize the contact area between the skin and the conductive fibers. Using a grounding sheet is a very simple and effective way of grounding. you only need to spread grounding sheet on the mattress like a normal fitted sheet and snap the grounding connection cord onto the metal stud on the side of the grounding fitted sheet black conductive leather, and plug the other end of the ground cord into the grounding jack of the wall outlet. At this point, you can make the skin directly contact the grounding fitted sheet to achieve grounding.