I have got a boar who has just had surgery to remove a bladder stone and I have him and his companion in my "hospital" cage. I have just bought some vetbed to use in this cage and am about to wash it for the first time. I remember reading somewhere that you shouldn't use conditioner as it affects the absorbency of the vetbed. My question, however, is how often should I put it through the wash before using it for the first time and can it be tumble dried? It didn't really come with any washing instructions - not very helpful ! ?