@scullinator: Do it! While losing weight will help, it's not always 100% of the problem. Plus, losing weight will go a lot easier if you aren't so tired during the day. Once I got on my CPAP I was able to manage the gym a lot easier. I then backslid a bit once my wife started making wedding cakes but that's another issue. I'm so used to the mask now sleeping without it is really difficult on the very rare occasion I've had to.