Thanks for the quick reply. It sounds like you've gotten stuck with a virus, and all of the fun that comes along with it.
First of all, I would suspect that you are right in that your sleep apnea is probably slightly worsened with this extra stuffiness and sinus drainage, along with the cough.
A lot of times what happens as well is that at night the sinuses drain down your throat and this leads to mucus in your stomach which can give you that upset/full stomach feeling. This may be at least partially leading to that "bubble" feeling you speak of. It also may help if you drink some vernors (just like mom always said), or take some tums to get any extra gas out of your stomach a while before sleep, both of these may help, and neither will hurt.
This being said, unfortunately the only resolution to your situation is going to come through getting over the cold as fast as possible. This will be expedited by drinking plenty of water, and keeping your sinuses draining to prevent any buildup and potential infection. I usually also recommend using a nasal saline wash, you can buy cheap at any drug store and use as often as you want. Also try to take a hot shower and breathe in the steam at least once a day, plus you can put your head over a boiling pot of water (not too close...) to breathe it in.
I hope this helps some, I wish I could supply a fix all for you, but you're stuck for a bit. If you have any further questions, by all means let me know, best of luck...
Please ask if you need clarification/more information.
POSITIVE feedback & a BONUS are greatly appreciated.
Please note that answers are for information only, do not take the place of an assessment by your doctor, and does not establish a patient-physician relationship