Sleep Apnea Treatment

I am scheduled to have a sleep apnea sleep study next Saturday, but I was wondering, since it takes three weeks for the results of the study, what can I do to improve my sleep and breathing until then. I am fairly certain I have sleep apnea but I cannot get the mask until we are for sure about it. I am tired all the time, what can I do about this?

his machine broke,and all the company and insurance companys tell him is that he has to get 2 referals, and it would be some time before he can get a new sleep apnea machine (or to repair it).is there an easy way to pass all this red tape?