I have just invested in some more nappies and it has made me notice that the present one's are a lot rougher than the new one's. I wash daily and use either Ecover or Filetti (?sp) washing powder. I do pop them into the tumble drier for 20 mins or so to start them off but then line dry. Any suggestions at how to restore their 'fluffiness'? I use MEOS/Popolini and tots bots.