Have now done 3 nights of second session, this morning woke up with very noticeably bigger left than right swelling which reminded me that with new domes the right dome inlet where you attach the tube always seems to have a sort of plastic film making the hole smaller than on the left. This is the third pair of domes I've had (all different sizes) and with every set the right dome is always blocked like this - lucky I remembered before I got even more lopsided!
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