No idea how often the missus changes them....more in summer than winter I imagine. As for the company's OTT comments....they would say that if they're flogging the stuff. Anyway, we share our bed with this little chap who must carry god only knows what on his paws. (Quote from GlasgowJohn) Indeed....keep telling the missus that. (Quote from Splinter) Carry on regardless. The exercise will do you good.