My parents did this for like, 25 years. They lived in a really hot place so the sheets dried very quickly outside but I don't know how they did it for so long. I had that 'oh crap, my sheets are still on the line' realisation when I went to hop into bed maybe twice before I decided no way, never again. They definitely had enough money to buy a second set so I just don't know why they didn't do it earlier.