Awful behaviour

This will be long sorry. Is anyone else's going through a "bad" behaviour phase. He's currently TERRIFIED of bed and screams (literally) all night. I attempt to settle him and even ask him to talk to me about what he wants but he just screams (i don't mean crying, I mean ARRRGGHHH) repeatedly and this goes on all through the night. It's then affecting his behaviour during the day because he's exhausted and starts constantly crying, smacking and scratching me or his siblings. This has only been going on the past week but it's really affecting the mood of the house, my 15 year old cried opening their presents yesterday but he was screaming and tantruming that much it ruined the whole morning. I'm not a shouter, I obviously don't hit him, I offering cuddles, talking calmly, asking does he want quiet time to relax/calm down but nothing is working. I've just took him for a bath and he it means bedtime so started shouting the house down saying he wanted downstairs and I just know it's going to be a rough night again. To say how bad it is, on xmas eve my watch states I got 1hr 50 mins sleep, last night 2hrs 43mins sleep. I'm on empty and alone with the kids.