Please helpppp my previously good little sleeper just turned 2 and he’s suddenly refusing his naps and bedtime and waking overnight and waking at 5am. He’s very obviously tired, but he will fight sleep and sit up in his cot, for over an hour he’ll sit up and drift off but then fall sideways and wake himself up. It’s like he’s developed a fear of lying down in his cot all of a sudden. I’m in my third trimester and on my own at the moment and not sure what I can do!