Grounding Sheets California King Premium Cotton for Healthy Sleep Therapy, Deep Pocket Grounding Fitted Sheets Includes Grounding Cord (Gray, California King -72"x84"x14") Gray California King is up for auction in Home & Kitchen. The current bid is $17.00, 80% below the $85.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.