An air mattress or an air bed may develop mold if it is kept in a damp area. Keeping it inside a plastic mattress cover may also cause mold or mildew if bacteria are already on the mattress. Clean the mattress outdoors with a mild soap and water or a vinyl cleaner to remove the mold.
Removing Mold or Mildew
Step 1 Set the Mattress Outdoors
Cover a flat surface outdoors, such as the driveway, with a clean plastic tarp. Set the mattress atop the tarp. Inflate the mattress with an air pump if it is not already inflated.
Step 2 Brush Away Mold Spores
Brush dry mold spores off the mattress with a soft-bristled brush such as a nylon-bristled paintbrush or a fingernail brush.
Step 3 Wipe the Mattress Down
Wipe down the mattress with a sponge dipped into a bucket of warm water that contains a squirt or two of dish soap. Wipe one area at a time, such as the top or sides, then rinse the mattress off with a hose or with a sponge dipped in clean water. Do not wet plush or velour areas of an indoor air mattress or air bed, other than mildew or mold spots that require attention.
Step 4 Clean the Other Side
Flip the mattress over to clean the other side with the soapy water. Rinse it off as well, then allow the entire air mattress to dry completely before taking it indoors or deflating it. If the mattress smells a bit musty after cleaning it, wipe it down with equal parts water and white vinegar, then allow it to air-dry.