A method of updating existing screen printing or other manufacturing processing in order to generate sheets and other bedding with marking indicators for proper alignment of the covering on a mattress, and the covering as produced. For a top sheet it would be marked along the top edge of the sheet as well as the body of the sheet which contacts the corners of the mattress at the foot of the bed, and for a fitted bottom sheet the markings would occur at each corner of the sheet which is associated with a corner of the mattress. Optional side indicators located between the corner indicators may also be included. The purpose is to provide a quick and easy identifier for locating the corners of the mattress with the sheet so that the sheet is quickly and easily placed symmetrically upon the mattress the first time.