If her bedroom is that low she wants to be more concerned about him constantly taking in cold air, given all her helf conditions I’m surprised Asthma isn’t on the list. And if you have eczema like he does chances are you can have asthma too and cold air is absolutely no good for their breathing. Maybe stop buying toddler plates and shit and that extra couple of quid could go towards heat, or perhaps radiator foil, a draft excluder or even a little oil radiator that uses minimal electricity.