Sjones - congrats on getting so far into your treatment!! You sound like you're doing awesome. I too had a notoriously dry mouth during the end of rads - I did use a humidifier, and when I woke up at night - which inevitably happened I'd just rinse and go back to sleep. Towards the end - last few days and a week post treatmeant I would take an oxy - before bed - and one when I woke up midway through the night - itdidnt solve the dry mouth but I would sleep through it!
oxy puts me out like a light. In fact I was off them a week after finishing treatment - but I continued to take one at bed for an extra week. I'm still dry in the mornings!
I use biotene tooth paste, and the rinse (or toms - depending) and the squirt - lubricant if I'm out and dry!! Hopefully our remaining gland will recover !
take care!