This is a great post. I have had chronic sinus infections (at least 5-6 a year) since I was a kid and have therefore suffered from chronic fatigue. Currently, at age 35, I finally had sinus surgery a few months ago, that ended in a raging post-op MRSA infection. Defeated, my new primary care recommended a sleep study to address my chronic fatigue, and a possible cause of lack of sleep, depleted immune system and therefore chronic infections. Lo and behold, I have been diagnosed with OSA - and from what my doctor told me, not someone who he initially would have suspected to have it prior to my sleep study. I have just received my CPAP with nasal pillows and am still trying to get used to it, but I am very interested to see how it will effect not only the quality of sleep but my immune system and chronic sinus infections. My issue is that I'm feeling suffocated by the hot air coming through the CPAP. I'm afraid to tinker with the humidity because of fear of drying out my sinuses, but the hot air coming in through the CPAP causes the feeling of panic. I have the coil heat turned completely off and the humidity set at 3 on my ResMed AirSense 10 machine. I'm using the AirFit P10 for Her nasal pillows. Any recommendations on how to overcome the heat/suffocation issue without it drying out the sinuses would be helpful!