I have some time ago bought the Topliner but not yet been rated, because I wanted to wash him only a few times. Previously I had a dust pad for my waterbed which was unfortunately so atmungsinaktiv that it started including to modern, which evidenced by appropriate odor made himself lucky and was able to be resolved as quickly. Therefore, I have the Topliner ordered as a spare. Positive I can say that nothing müffelt / modert and that the Topliner not shrink. It is even suitable for tumble drying. Negative I have to say that he does not perceive its role as a dust cover. Especially with waterbeds falls since a lot of and therefore the requirements to buy, because you have no desire to constantly clean the rubber mattress. Unfortunately I have to still, and just as often as before. So that part has not served its purpose for me.