I'm wanting to take a job that's over nights. Is there home care for an hour at night to put her to bed and make sure she has a new depend on?

Some agencies will provide someone to come in for an hour. Others want a two hour(or longer) minimum. Call the agencies in your area to find out. The problem with having a friend do it is, what if they become ill? It is a good option, but be sure you have a back-up person if this should happen. Otherwise you would have to take time off from your new job. The cameras are also a great tool to help you monitor what is happening while you're away, as is the Life Alert.

How has the stoke affected her? You don’t mention dementia so she might be fine. But if you need to be there to live with her, how can you be gone? Do you sometimes leave her while you go food shopping etc?
Would she be afraid?
I don’t think you’ll find a health care service that will only work one hour. But you can ask. Maybe a neighbor or friend.
Does your mom have a bedside commode? Does she wear depends?
would she be willing to forgo the chips and Diet Pepsi and maybe have some apple slices and cheese or a segmented orange or maybe some diet jello with fruit?
That could be her part of the job. To stay in or near the bed and not rush to a bathroom. And have something that is easier on her kidneys and a backup plan, like the Depends in case she doesn’t make it.
Medicare will pay for a bedside commode. You can sometimes find them at resale shops. Let us know what you work out.