Support for a Grieving Single Mom

My sister just lost her four-month-old baby boy unexpectedly. She's a single mom with four kids that she still has to take care of while mourning the loss of her baby boy. She's not holding up very well. This is a very, very hard time for her and all of us. Anything helps. She is unable to go to work right now, and I don't know for how long. Money will help with household things, bills, and food.