helou...I usually take 2 days to make bread. The first day is for allowing the sourdough starter to inoculate the dough and the second day is for letting it rise and bake. Letting it rise in the fridge overnight is a good idea. I've done that many times. The cold will slow down the rising, so that it doesn't rise too much and then collapse before morning comes. It is just finding room in the fridge for that big pan of bread that is the hard part.