How long does coffee last in a Ziploc bag?

I'm curious, how long can I expect coffee to retain its freshness when stored in a Ziploc bag? Is there a specific type of Ziploc bag that's better suited for storing coffee? And does the method of storing it, such as whether it's sealed tightly or not, play a significant role in its shelf life? I'm looking for practical advice to ensure my coffee stays fresh for as long as possible.