How do you find the motivation to get sober when life as an addict feels 'comfortable'?

I'm struggling to understand how an addict can work on sobriety when their life as an addict isn't terrible, just... comfortable. They might be making decent money, getting by, and not facing major consequences, but things also aren't great. There's this understanding that life would probably be better sober, but the lack of a clear incentive to change makes it hard to take that step. How do you break out of this 'comfortable' rut and commit to sobriety?