S.N.
Hospice is for people who have made the conscious decision to end aggressive treatment and go with comfort care. It isn't something you can get for her as she has to come to that decision. You could ask her if she wants to meet with a hospice. They don't provide child care so that won't help with that aspect.
Recommend they talk with their hospital's social worker or case manager about community services for them. You could call for the information and then give it to the husband. Some cities have help available if they qualify financially. If not, there are private duty agencies he can employ
I know you want to help so maybe find the information for them. They will have to make the decisions about what to do with them. It's very nice that you are so concerned.