I spoke with someone at REI that could not answer my question so I am going to post it here. I am allergic to down and want to know if the 800 or 850 fills are enclosed/protected enough to not cause me any trouble breathing and blowing snot bubbles? I don't have a problem with the the synthetics I would just like to try a down bag but don't want to spend the money just to see if I it causes me problems.