My sleep study is tomorrow night. I am hoping that the study will show that my oxygen levels are good enough to get rid of my supplemental oxygen. I hope that I do not need Bi-PAP or CPAP, I just don't want to sleep with a mask on every night, but I will if I need to. No napping tomorrow and no caffeine. I am going to ask for a copy of the findings of the study, I want to know specifics, not just "everything is normal" because I don't really know if normal exists for me!