Keep taking my mask off during my sleep.

I have been using my CPAP since 2022 and I have been struggling since then. when I am able to keep it on all night, I get great restful sleep but I have been taking it off during my sleep without knowing, I have the full face, and nasal pillow, both masks are very comfortable, I do not understand why I keep! talking it off during the night. I have tried sedation with Benadryl as one doctor recommended but it did not work. Any tips would be greatly appreciated.

Thank you!