How do you explain to your children (toddlers) when the violence in adults and even within the family?

Since I give birth my baby since he is 4 months he is always falling down from bed, I'm so worried about him.. I dont know what will happen to him.. Until now he is 10 months.. I fall asleep with the baby and I know put risk of the baby but my body need rest.. I wanted to sleep but cannot.. I'm alone to take care the baby. Even my husband only at home, my husband russian, not like filipino husband helping the wife to taking care of the baby if it free.. He doesn't even say ohh hon go to sleep I will taking care the baby now.. Even I feel bad, I need to move, because I have a baby.. My husband only sleep and sleep.. Although he has work little at home.. I just only share about this. Thanks!