So, with ALL 4 of my kids, the night weaning was the worst. They had self-weaned to 1-2 nursings/day and it was usually at night and then first thing in the morning. The ONLY thing that worked was cutting them off abruptly. I left for 2-3 nights without the baby and came back to a happy baby that never even asked for milk. Well, one did, but we just sat and cried together. The next day, no mention of it.
My DD was 100% BF until 18 months when she continued to refuse ANY solid food. She would go 8 hours without food, waiting for me. I finally cut her off and she slept through the night and started eating solid food.
My husband said that NONE of them screamed. Once they realized I wasn't there, they went back to sleep. My last one weaned whined for about 3 minutes and that was it.