You can also put a fence around your property or just the garden. I prefer the property as it keeps the zombies from getting near my house and make a lot of noise.
The only thing of SN that really bothers me is the werewolves; they stay in their shape all the time, walking around in that silly crouched over walk, picking fights and scratching the furniture. Canines don't scratch furniture, they may bite or chew on it, but not scratch. And the kids don't grow up.
You can click on something, don't remember what and keep them from showing up.
Anyhow, you can set the moon cycle as suggested so there is no full moon.