Line up the back cushions on the floor along the couch so that you have a soft surface to land on if you roll off. If you are sleeping on a couch made of a slippery material, such as leather, make sure you pad the floor with something.
If you are crashing somewhere and have nothing to pad your bed with, look to your own belongings. Sweatshirts and sweatpants might work, if you can lay them flat.
Couch fabric tends to be cleaned less often than other surfaces, so try to keep something between it and your skin. Use a couch cushion as a pillow if you must, but cover it with something. If you don’t have access to a pillowcase, dress it in a clean cotton t-shirt. If you have no sheets, lay out any soft and clean fabrics you can find. Wear pajamas to avoid contact with the couch fabric.
Check the tag on your couch to see what kind of cleaning it can handle. The tag may be under the couch next to a leg. It will be marked with a letter that lets you know how to clean the couch. “W” means you can clean your couch with a water-based detergent. “S” means it needs to be dry cleaned or cleaned with a water-free detergent. “WS” means it can be either dry cleaned, or cleaned with a water-based cleaner. “X” means it should be professionally dry cleaned, or vacuumed. “O” means it is made of natural fibers and should be washed in cold water
Ask the other people sleeping in the house to keep it quiet if they can. Be kind, as you are either a guest or a host in this situation, and owe your guest or host courtesy and consideration.
