Cut day old sweet bread into small pieces and place in large bowl. Add the sage, poultry seasoning, salt and pepper. Toss and allow bread to sit until dry.
In a large skillet, melt butter and add celery, onion and water. Stir until heated but not boiling.
Combine the cranberries, sunflower seeds and vegetable mixture to bowl of dried bread; stir well.
Use as a stuffing for turkey, or bake in a buttered casserole dish at 350 degrees F (175 degrees C) for 30 to 40 minutes.
