Companion Care Needed

About who needs care: My mother, Marjorie, an 83-year-old woman with dementia. She lives in her home and her husband, her former primary care giver, recently passed away. She is very chatty, very independent minded. She gets agitated and confused at times. Mainly needs companionship when I, her daughter and current primary caregiver, cannot be around.
About the care needs: Needs some help getting dressed and some hygiene care. Mainly looking for companionship. Looking for someone experienced with dementia patients/memory care.
Services needed include: companionship, feeding, and bathing / dressing.