silly question since it winter now in yuma az. we changed over to our winter bed sheets i say my warmer sheets any way they are flannel king size sheets. they age bigger and heaver than our summer sheets. summer sheets are queen size but our winter ones are king size. i havent changed over yet. anyway they are bigger and heaver than the others are. i dont want to over load the washer. i know to wash one sheet at time so would it be ok to wash that sheet or would it be over loading it. thanks for your info.