AllerProtect dust mite allergy protective bedding system that totally encases mattresses, quilts and pillows, protecting your whole family from the dust mites and the allergies they trigger. AllerProtect is a proven bedding system, made from 100% cotton fabric with no chemicals or dyes. It is soft, air permeable, average pore size 6.1 microns specifically developed as a barrier against dust mite allergies. Machine washable, light weight, breathable.