My house is brick made, and very well insutated... it can get too hot often even tho' I have windows open much of the time. In summer it can be a real PITA because it's very difficult to cool it down..no AC... but it's a blessing in winter, because I put heating on much later than my friends..and often I can turn the heating on for an hour or less, and it keeps the house cosy all day long
Last night I was too hot in bed, I kept throwing the covers off.. and there was no heating on...