We are in the middle of the 4 month sleep regression. Leonardo has turned 4 months and since we came back from Christmas holiday, unfortunately his sleep has not been the same. He used to be a very good sleeper: he usually woke up once in the night just for nursing and then fell asleep again. But his night sleep has totally changed since a couple of weeks, he wakes up frequently, it seems he can’t fall in a deep sleep or he has some pain. I thought it might be the environment change as well as teething. As long as…

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