How much time should I be spending in each stage of sleep?

[jlg]

I could really use some advice if possible. I had a sleep study done, and went to the follow up appointment with the sleep specialist afterwards. It would appear that I do not have sleep apnea (though I am dubious about the results of the test), and because of that, the specialist that I saw did not appear to be all that interested in me once we got the results. He threw out a few terms that I did not really understand, but didn't really explain the results of my test to me at all. He mentioned poor sleep maintenance which I assume means that I wake up a lot, and low sleep efficiency (which I googled to find meant that I spent a large part of my time in bed awake). Both things I already knew.

My main question is, though, how much time should I be spending in each phase of sleep? I have the results of my test, and will post below to see if anyone has any insights.

"The patient achieved 220 minutes of sleep out of 485 minutes time in bed with a sleep efficiency of 45.5%, which is very low. Sleep architecture showed 2.3% REM sleep, 9.2% delta sleep, 17.7% stage I, and 18.5% stage II sleep. The patient had no apneas, and no hypopneas, and respiratory disturbance index was 0. The lowest oxygen saturation was 96%. No periodic limb movements. EKG normal sinus rhythm. No audible snoring."

Obviously, my Oxygen saturation was very good for this test which would indicate no apnea, but I know for a fact that I do snore. Not every night, and it varies from a very light snore, to no snoring at all, to snoring so loud it could peel the wall paper off the walls. Since I didn't snore at all that night, I am not assured that the results of my study were all that accurate, knowing that I can and do snore quite loudly, but did not that night.

I've tried to google sleep to see what percentages I should be seeing in each phase, but I can't find what I'm looking for. Can anyone here help? Or lead me to a source where I can find the information I'm looking for? I would greatly appreciate it.