While prevention (in the form of waterproof linings) is always better than cure, you can still salvage your orthopedic cat bed if urine or other bodily fluids end up soaking into the foam. Enzymatic cleaners use a combination of natural enzymes and good bacteria to consume organic waste, such as urine and vomit, effectively eliminating odors and stains. To clean your orthopedic cat bed, apply a generous amount of enzymatic cleaner and allow the bed to dry. For more severe messes, you may need to repeat the process several times before odors and stains have been eliminated.