Air beds are portable, inflatable mattresses commonly made from vinyl plastic. Air beds can be inflated by pumping air into the mattress and can easily be deflated and folded up for easy storage. Store a completely dry air bed in a waterproof, airtight container to prevent mould from forming. Clean any mouldy spots with common household products.
Move the deflated air bed outside.
Mix equal parts vinegar and warm water in a bucket.
Dip a sponge in the mixture and use it to scrub the mould off of the deflated air bed. Turn the mattress as needed to remove all mould. If the mould is hard to remove, dip a soft-bristled brush into the vinegar mixture and scrub it onto the plastic. The bristles will help loosen the mould.
Apply a quarter-sized drop of shampoo to the damp sponge. Rub the shampoo onto the air bed to remove the vinegar scent.
Rinse the shampoo from the air bed using a hose.
Prop the air bed up on its side using a fence or the side of the house. Allow the mattress to completely air dry.
If vinegar does not remove mould, use a diluted bleach solution. However, bleach can discolour and weaken plastic mattresses and should only be used as a last resort, with the understanding that it can cause irreparable damage.