I had a small idea, that I cannot code myself (Im not very good at modding) so if someone wants to use this idea, ok.
Anywho I was thinking about some changes including bats eating off of sleeping friendly mobs, and also friendly mobs will fall asleep at night. I was thinking that if you hit a mob sleeping, you have one second before it gets up, and then runs around. Bats will also reduce your hearts about 2 when you wake up if their are bats in the area (since the bats in minecraft are small, they are prob carnivorous bats). Thats all I've really thought of so far.