Protect-A-Bed have specialised in bed protection for over 30 years. This protector features a 3-sided zipper system that is specifically made to keep out allergens. This is important for complete protection against things like bacteria and dust mites, which can cause irritation and discomfort during sleep. The Allerzip Smooth Pillow Protector Twin Pack has a 'Miracle Membrane' which allows the protector to breathe, reducing the build up of moisture and also providing an extra layer of comfort for a relaxing night's sleep. The protector is machine washable and tumble dry ready.