We are proud that Ethan is pretty much in control of his toileting in the day time (that Good Boy chart was pretty good!) and we have recently started trying to train him to go to the toilet at night. He is quite a heavy sleeper so we are not sure how this will go but so far we have been waking him at around midnight before we go to sleep and take him to the toilet then. He's usually quite sleepy but cooperative enough to stand and pee at the appropriate time. We have also been trying to reduce his bedtime milk drink to only upon request. In the morning we have been telling him to make sure he pees in the toilet and not in the diaper!
So far we have been pleasantly surprised with quite a few dry diapers and only a couple of 'spillovers'! Well done son!