The second reason to use a mattress protector is because it can help to keep your bedding clean. If there is anything on the Protector, then it will not get onto the sheets or blankets. This means that you do not have to worry about tracking dirt or bacteria around the bed. It also means that if there is any liquid spilled on the bed, it will not get on the sheets and cause stains. These covers help keep your bed clean and free from allergens, dust mites, and other particles that could cause irritation or exacerbate existing allergies. Not only are they a great way to improve your sleep environment, but they can also prolong the life of your mattress.