BareEarth Grounding Fitted Sheet Single/Twin Gray Sheet Sealed Open Box BareEarth grounding (earthing) fitted sheet in Single/Twin size, gray. Outer box has been opened but the sheet itself is still factory-sealed in its inner packaging — never used. Made with conductive silver fiber woven into organic cotton, designed to connect you to the earth's natural energy while you sleep. Comes with grounding cord for setup. A great option if you're curious about grounding/earthing therapy or already use these sheets and need a spare. See pictures.