First inspect the valves. Then, check the seams. Finally, inspect the flat surfaces of mattress.

For “flocked” (fuzzy) mattresses, use fine grit sandpaper or an emery board to smooth the area before attempting to patch it. Be gentle! And make sure to remove any debris with a damp cloth or vacuum cleaner before proceeding. [1] X Research source Alternatively, use acetone—an ingredient found in many nail polish removers—to smooth the flocked area before patching it. Wet a cotton ball with a small amount of acetone and dab the area around the hole. Then, use something rigid like a spoon to scrape away the flocking. Finally, use rubbing alcohol to clean the area thoroughly.

In the event that you are unable to seal the hole with glue alone, proceed to Method 2, “Patching a Small Hole or Tear. ”

Use any vinyl repair kit instead of an air mattress repair kit. Choose an adhesive that’s made expressly for sealing seams. Try McNett’s Seam Grip or Coleman’s Seam Sealer. You can also consider using rubber cement. Duct tape can be used in place of the vinyl if no other alternatives are available. [2] X Research source You may also need something with which to apply the adhesive. A small paint brush is ideal. [3] X Research source

If the leak is small and in an area where a patch cannot make full contact with the mattress fabric, you can try plugging the leak with a small a bit of adhesive. [7] X Research source

Consider weighting down the patch with a 10-pound weight to ensure full contact between the patch and the mattress. [9] X Research source

Exact drying times will depend on which adhesive you’ve used. Refer to the directions on the package.

When purchasing adhesives, look for urethane glues like McNett’s Seam Grip or Coleman’s Seam Sealer. Instead of urethane glue, you can try rubber cement.

If you’re fixing a seam on a flocked surface, use more adhesive to ensure that the two sides of the seam stick together.

Consider using clothespins to hold the two sides of the tear together. Just be careful not to glue the clothespins to the mattress.

This is a long-shot method and may not always work. Often, a severely damaged valve means that you’ll need to buy a new mattress.