Michele, make sure Dan sleeps sitting up. This will help keep the mucous out of his throat and cough center. Even with that, toward the end of my treatments and for three weeks after, I was still up every 45 minutes or so to cough, hack, spit, etc. It is just part of the deal. Fortunately, this side effect from rad, which keeps giving for a long while, fortunately this ends. It's ironic, I have difficulty now remembering how bad it was. Dan will get to that point as well. Look what you both have to look forward to. Another thing, try to always have water available to help keep the throat clear. Other than that, try to anticipate the joy of not having to deal with it in a few weeks.