Pauley - thank you, maybe you are on to something, because they did have 'something' at the back, but stupid me was thinking not to mess with mummy-stuff. I'm cleaning them now! Lost one more :cry: this morning when I came home mum had put two at a side (still warm and with milk), I just put them back in to the rest, but now 6 hours later one of the 2 has died. I've been so lucky before, never lost a single baby, so it's hard - still I look at the rest and fell blissfull again!