"Reports state that the average pillow doubles in weight over a period of six months, as the presence of dust mites and their excrement begins to weigh it down. Purchasing premium allergy free bedding is a sound investment for those who want to make their bedding dust mite proof. Hypoallergenic fabrics like Allersoft can be used to cover mattresses, pillows, and comforters, providing an effective barrier against dust mites and pet dander.Older mattresses should definitely be replaced if regular cleaning doesnâ¤™t reduce your allergy symptoms. Box spring vinyl encasings from reputable suppliers like the Allergy Relief Store can keep your box spring dust mite proof. Quality anti allergy bedding also includes hypoallergenic comforters and luxury synthetic down blankets. Such bedding offers comfort and warmth without triggering allergy symptoms. "