It was an upstairs room until I was a teenager. (Early teen). Then it was a basement room the rest of my youth. The upstairs room had a sloping ceiling since it was shaped by the roof of the home. It was always hot in the summer and cold in the winter. The cooling was a cross breeze between the two windows on each side of the house and heating in the winter was by heat coming up from the living room via the stairs and a small hole in the other bedroom closet.
The basement was always cool and felt pretty good. Heated by a vent into the room from the furnace system. There was a shower in the one corner of the room that on one occasion had a visitor while I was showering, a scorpion. Many other visitors made their way through my room as well until I figured out a way to catch them where they entered the room, speaking of mice by the way. I had a neat place to grow up and wouldn't trade it.