This sounds like it might be EXACTLY what your mother (and you!) need!! It would be great if someone came in and set something up for when she does go home - that you can't be her-everything person, and that she has to do some things herself, or get outside help on a scheduled basis.
If it is a similar set-up to near me, there should be a social worker that comes in to help set up discharge and follow-up plans. Please, take advantage of it!