How long will a bottle of champagne last if not refrigerated?

A bottle of champagne will typically last for 1 to 2 days if it is not refrigerated. However, the quality of the champagne may start to decline after the first day, and it is recommended to drink it as soon as possible. If you do not plan on drinking the champagne within 1 to 2 days, it is best to store it in a cool, dark place.