A top sheet is also a flat sheet that lies between occupant and comforter. The main purpose of a top sheet is to protect bed covers from heavy laundry and add an extra layer of softness. A top sheet increases the softness and helps to regulate the temperature in the bed. According to a survey, 70% of the American population likes to use a top sheet along with the comforter. We can use... https://www.aanyalinen.com/blogs/aanya-blog/what-is-a-top-sheet