Hi groundhog
I don't think you could have her living with you due to your upcoming op, health issues and if her health worsens. Re- overnight help, I think there are some agencies that have carers that do sleepovers - but don't know about the costing or if she'd be able to claim benefits to help with cost. Or would she accept going into a care home? That may seem an expensive option at first thought, but then she would not be paying rent, council tax, food shopping, bills etc so it might work out fairly evenly. As everyone has said about the hospital though, they should arrange something even if only temporary to begin with. Hope it all works out.