Seeking Part-time Senior Care Provider In San Francisco

I need senior care provider with experience. Our care concerns are: Mobility Assistance, Bathing / Dressing. I'm taking care of my 88-year-old mother in her apartment. I need someone who can fill in for occasional 4-8 hour shifts when I am away. The main help she needs is moving around the apartment between bedroom, living room, and bathroom: she uses a walker but if she falls she can't get up. When using the bathroom she sometimes needs help undressing and dressing. She also needs to be bathed once every week or two, but that can be someone with specialized skills, respondents who don't want to do the bathing part may still apply. For night shifts she just needs a sitter because sometimes she wakes up confused.