I would not let it sit that long, not over about 30 minutes because of the chicken broth and usually eggs that are in dressing. I would mix it and keep it in the fridge until time to bake.
Cooked cornbread dressing should not be left at room temperature for more than two hours to prevent the risk of bacterial growth. If the room temperature is above 90°F (32°C), this time reduces to just one hour. To ensure safety, it's best to refrigerate or freeze leftovers promptly. Always reheat thoroughly before serving.
Cooked fish should not be left out at room temperature for more than 2 hours to prevent the growth of harmful bacteria. After 2 hours, it is no longer safe to eat.
Cooked pork at room temperature is safe to eat for a few hours. If stored in the refrigerator, cooked pork is safe to eat for 3 to 5 days. If you freeze the cooked pork, you can store it for 4 months.
Cooked fish should not stay at room temperature for more than 2 hours. Less time is better. At that point, it should be reheated or refrigerated.
Cooked fish should not be left out at room temperature for more than 2 hours to prevent the growth of harmful bacteria that can cause food poisoning.
Cooked meat should not be left out at room temperature for more than 2 hours to prevent the growth of harmful bacteria that can cause foodborne illness.
Cooked pork should not be left out at room temperature for more than 2 hours to prevent the growth of harmful bacteria that can cause foodborne illness.
Cooked meat should not be left out at room temperature for more than 2 hours to prevent the growth of harmful bacteria that can cause foodborne illness.
4 hours at room temperature
There is no standard for the size of a dressing room.
Cooked turkey should not be left out at room temperature for more than 2 hours. After this time, it should be promptly refrigerated to prevent the growth of harmful bacteria.
Cooked meat should not be left at room temperature for more than 2 hours. At that point, it should be refrigerated or reheated. Cooked meat should be cooled at room temperature for an hour then refrigerated. After 2 hours it is not considered safe at room temperature. Food needs to be kept above 140F AFTER being heated to AT LEAST 160F.