WWM2 Right from the start the baby was inadequately dressed for the circumstances she was living in. I seem to remember that at some point in the trial it was said that the only clothes they bought were 5 baby grows. They could have bought cosy quilted all-in-ones, that covered her head feet and hands, they could have wrapped her in a blanket, they could have bought an appropriate push chair, dressed her in a quilted suit and covered her with a blanket.
They may have in their own world loved their children. but in their own world they did not, at a very minimum, feel the need to properly dress their child to make sure she was warm and dry. Shoving the baby inside the mothers jacket with just a babygro was not just dangerous, but fatal.
From all I have read of these two, their care of their other children was just as neglectful and uncaring. That is why all four had been taken into care and put up for adoption, This would not have been done of social workers had thought there was any chance that the parents could ever be capable of properly looking after their children.