Companion Care Needed

We need live-in home care to take care of my mother in Vestal who has moderate Alzheimer's and is starting to become dependent on walker or even perhaps wheelchair. Mostly she needs prompting to eat meals and brush teeth, help getting out of low chairs. Caregiver must be nonsmoker, and hopefully have some experience with dementia. Ability to do night shifts (which should just entail watching her go to bed, and then waking when she wakes) is our direst need, we have people who can help during the day or work in shifts.