I know what you mean about the size of the thread! I haven't worked right through yet! I also just walked through the door!
Re night nappies, have you seen the new Sweet-night nappy? It looks amazing! An AI2 night nappy with a winpro waterproof but totally breathable fleece outside, and no PUL at all, and a polar fleece lining. It's absolutely gorgeous (if a bit pricey, but if you get an extra soaker with it, you get 2 nappies for not much more than the price of one.
Fantastic idea anyway and a GREAT night nappy IMO!