I can't sleep if I am too warm either. Ideally, I like the room crisply cool to sleep. Lucky that isn't a problem in the winter here! XD Maybe it is because I grew up poor or most folk up here don't install AC for the three or four weeks out of the year it is hot enough for it, but I hadn't even HEARD of having AC in a private home until I went to the States for the first time!

*laffs at cute kitty*