Fitted sheets are natural-color, 100 percent cotton (made with conductive silver thread), available in different sizes to fit most mattresses. Kit includes 1 fitted sheet with straight cord, 1 outlet checker, 1 user’s guide. Directions for use and care How to set up your Earthing sheet. 1. Place the Earthing sheet over your mattress and stretch each corner gently to fit contour of the mattress, as you would any fitted bottom sheet. 2. Insert one end of the Earthing cord into the ground port (third hole) of a properly grounded wall outlet or connect to cord of an Earthing ground rod placed in the Earth outside. 3. Find the connecting tab on the sheet and snap other end of Earthing cord onto the tab. 4. When you lie down on the connected sheet, any bare skin contact will transfer the Earth’s energy to your body once you connect the sheet. How to care for your Earthing sheet. The sheet may be machine washed using warm setting, approximately 105 degrees Fahrenheit (40 celsius). Tumble dry using medium setting, up to 150 degrees Fahrenheit (65 Celsius). Do not use chlorine bleach or liquid fabric softener, or any detergent containing bleach or fabric softener, chemicals that can ruin the conductivity of your sheet. Do not dry clean your sheet. When necessary, use hydrogen peroxide-based non-bleach to remove stains and/or to whiten. Do not apply lotions, creams, or oils to the skin before bedtime on parts of your body that will be in contact with the Earthing sheet. Such substances oxidize and can damage conductivity.