Does anyone know where I can buy a cotton dressing gown for my 11yr old DS? I need it to be cosy (so I'm thinking not towelling) but can only find polyester. I have tried John Lewis, M&S, White Company, Boden, Debenhams, Notonthehighstreet,Joules,Amazon,Cath Kidston,Next.......to no avail. Can anyone think of anywhere else??