The concept of not using your top sheet is totally foreign to me. I guess it’s because I grew up in a drafty old house sleeping under down comforters, antique quilts, wool blankets and other pieces of bedding that were a sensory nightmare/difficult to clean. I see people in my generation joke about the uselessness of the top sheet and I’m like. Idk, I think it has a pretty important job to do protecting you from touching the creepy haunted quilt your great grandma sewed.