Choose a flat sheet
Fold the sheet lengthwise
Wrap one end around your body under one arm
Bring the rest across your back and over the opposite shoulder
Secure the top with a safety pin at the shoulder
Adjust the front so it drapes evenly
Tuck or pin the waist if needed
Trim any excess length if desired
Hem the edges if you want a cleaner finish
Try it on and make final adjustments