I have the same exact problem! The mucus pools in my throat at night and if I swallow it, it just comes back. It will NOT be ignored! I even took to spitting in a cup by my bed! Gross...but getting out of bed several times at night to spit into the sink is more exercise than a need...a cup is easier! I live alone so that's good! I don't know the solution for this...I can't find any real remedies on Google. It's just another inconvenience.