Zipped Pillow 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® pillow protector provides an effective barrier to infestation. Because treatments cannot reach the core of an already infected mattress/pillow, they usually need to be disposed of - but no longer. AllerZip® protects your mattress/pillow investment, and most importantly, your health. This protector is also waterproof and will protect your mattress/pillow from any liquid spills.