Revisiting Nightly Mouth Breathing During Sleeping Hours

Have you ever been known to, or told, you breath through your mouth at night?
We discussed this in a thread and had two different thoughts about breathing through your mouth at night verses the nose and what to do and not do.
I asked my BE pulmonologist a couple of questions a few days ago.
First Question: Does mouth breathing at night dry out the lungs, mucus, at night if one is breathing through the mouth at night.
Answer Received: No
Second Question: Would there be any harm in using micropore tape in the center of my mouth just under my nose to just under my bottom lip?
Answer Received: No
My recent experience: With beginning to again tape my mouth closed at night.
I have noticed the 'sputum' that always needs to be cleared out of my throat at night, when I awake at night and before I can go back to sleep, has not been as sticky and as hard to get up and out, to release it from the throat, with my taping my mouth closed. I would nearly gag on the 'sticky sputum'' without taping my mouth closed, it was that sticky. As Jill put it...."juicy". It is more 'juicy' with my taping my mouth closed.
If we are truly suppose to breath through our nose, (much healthier for us) and since breathing through the mouth at night always caused me to wake up with dry mouth, with the saliva that dries up in the mouth at night causing horrible dry mouth, I can't, for me, quite understand why taping the mouth closed would be negative.
If I remember what we wrote and discussed correctly on the thread we really weren't given a definitive reason why we shouldn't tape our mouth closed to stop the mouth breathing at night. We were just told to not do it, or stop doing it by either a doctor or a dentist. That's what I originally got, 'stop taping the mouth closed."
Also, if sleeping for hours with the mouth open and the mouth becomes so dry, I, that's an I, tend to think that it would affect the lungs, causing dryness., drying up some of the mucus in the lungs. ??
Again, as with our doctors we all have different thoughts, ways of looking at things and ways of doing things etc. etc. However, as they say, if it is working for you do it, try it. So I will again tape and see if it helps in the big picture with the BE/MAI.

I wish I had thought to bring this fact up at NJH when I was there. I failed to mention mouth breathing at night and taping the mouth closed. With all their research etc. etc. surely they would be the ones to give us a reason why not to or it's O.K. to tape.
Barbara