If he is pulling the screaming fits at home during the night so he can get up out of bed and get parent attention then child is exhausted in the daytime and that won't be helping. Have you tried putting him to bed as in playpen in another room till he settles - expect it to escalate before he gets quieter. He has learned that the screaming brings results so he also needs to learn that the screaming won't bring the results he wants. At least from another room the sound will be somewhat muffled.