Zipped Mattress Protector. Bed bug and dust mite infestations are serious problems that can??irritate a variety of health concerns including asthma, eczema and allergies. An AllerZip? mattress protector provides an effective barrier to infestation. Because treatments cannot reach the core of an already infected mattress, they usually need to be disposed of - but no longer. AllerZip? protects your mattress investment, and most importantly, your health. This protector is also waterproof and will protect your mattress from any liquid spills. AllerZip is part of the Protect A Bed range.