Overnight Care Needed For My Father In Willingboro

I'm looking for an overnight person for my father in his 80s. He has early dementia, is mostly blind from macular dementia, and has fallen several times in the last year breaking bones. My mother also lives in the house and needs no assistance but is in a wheelchair so can't help my dad. We need someone to work from 9 p.m. to 9 a.m. who can stay awake to assist him with going to the bathroom in the night.