My son has slept straight through the night since he was 11 weeks old. He goes to bed for 7pm every night and is awake for around 8am. He’s 6 months old now and for the last 2 weeks he’s been waking anywhere between 4am-6am for a bottle. I’ve tried the shushing back to sleep but he is hungry and gets more and more frustrated as I try and re-settle him. He’s always been a straight through the night sleeper, and now he’s waking again. Anyone have any experience? Is this just a faze?