CPAP dry mouth

I wake up so many times per night with dry mouth, to the point where I have to take my mask off and drink water - this is probably a common problem but it is affecting my sleep, Is there anyway to make it better? My humidity setting is at its highest. I was thinking maybe a humidifier for my room would possible help? Or is that just dumb to say because the machine is what does it, can the outside air help my dry mouth? Any suggestions will help thank you .