I like to air out our bedroom during the day. Since the weather turned colder I keep the outside shutters down and just open them a couple of inches at the bottom then open the bedroom window the tiniest crack. I do this at 7.40/45am right before I leave for work. As soon as I get home from work I close the window and the blind fully; that's usually at 6.20/30pm. However, when we go to bed around midnight the bedroom still feels very cold and sometimes the bedclothes feel chilly from the air that's circulated around the room during the day.
Any suggestions for airing the room a little but not lowering the temperature so dramatically?