I have had that problem with in all my homes that I have lived in with my current home (4th) being no exception.
I have a whole home central fan system that stays on all winter, but it is not quite enough to keep the humidity off the windows when it gets to the -22 or so mark. So.......
I solved that problem a winter or two ago. READY for the answer.....
about layla mattress
I have put up plastic on all except 2 windows in the house for the past couple of winters. Very little to no condensation anymore, and it keeps the house so much warmer. And putting up plastic is cheap, easy to do, oh, and it can't be seen from the outside, and does not look bad inside either.