Our daughter's CF doctor stresses the use of clean linens. Okay, folks, obviously we clean our linens, but he stressed it so much that it makes me think that what you sleep upon is tied to pseudomonas and other "bugs" more than anything. He didn't actually say that, but he has said more than once to maintain clean linens and don't buy expensive bedding. I'm assuming the higher thread count may harbor more bacteria? He also recommended no drapes and to minimize carpet, if possible. Have you heard the same?