As part of my desperate quest for a lapband operation, I underwent sleep testing. I was found to have mild to moderate sleep apnea and my machine was delivered tonight. I am SO excited to be using it. Hopefully, H will remember to buy the distilled water it requires when he brings youngest home from Boy Scouts. I really hope that this will help me lose weight because my insurance is not wanting to give me the surgery. Has anybody ever used this before? The one I have goes only in the nose and is very small and quiet. I can wait to go to sleep.