Sam try and stick with it. If I am logging in to post after month just for a this, I am that serious Seriously, the long term damage from untreated sleep apnea could pulmonary hypertension and eventually a weak right heart. That is a zone you don't want to end up as its irreversible. Last time I posted about this i was telling you not to get the surgery instead to go get a sleep study done before. Again, some how manage to use it. If needed try smaller mask and eventually really try hard to loose weight which is so far the only way to get off this thing. The thing is you were not that big to start with to fall in sleep apnea territory. So might have to dig deeper a bit before blaming just that. Anyways for now, stick with it as much as you can.