My daughter is in the upstairs back room (small room) which has the outside wall.

She says that the wall is very very cold of a night lately and one of the pillows she had down the side of the bed against the wall was actually wet with water moisture.

I said to the wife I'd ask what it means / what to be done.

In my limited knowledge I said I think the wall needs re-pointing.

It is a 1930's house, so single brick wall I'm sure.