re: Troubleshooting bedroom humidity levels (continued from previous thread)

Also, at night when your thermostat is set to 69F, what is the temperature at the t-stat and what is the temperature in your room?

One common issue of setting cooling temperatures so low (less than 70F especially) is that you get higher humidity levels. It is hard to cool moist air down that far and keep humidity low because as temperature drops, relative humidity goes up.