DD is 20 months. We had not really contemplated starting potty training until she was 2 (nursery also start at this kind of age). However, I've noticed several times recently that if we have had to wake her in the morning her nappy is dry. If she wakes herself (as most often happens) it is wet when we go in to her, but I'm guessing this is because she has done a wee since waking up. Is the fact that she is physically able to stay dry overnight an indication that we should be starting to think about potty training? She knows when she is doing a poo and tells me, but I have no idea when she is doing a wee - she doesn't seem to notice or mention this!