My mother is 96 has dementia and won't tolerate her CPAP. Anyone have any ideas how to make it more tolerable?

Moms co2 is thru the roof. We had to take her to the hospital again and they had to restrain her to tolerate the CPAP. We finally took it off and the restraints. We can't see putting her through this viscious cycle over and over. She deserves better. Can anyone think of a better way to tolerate the CPAP or a very light med to sleep (that wont kick her @ss for days) to tolerate it at night .. Im pretty sure shes going into hospice almost immediately and this can only lead one way if she won't tolerate it. I think we have done all we can ...but im asking you all if we missed anything ...thanks for any help.