I have an electric mattress pad and an electric blanket.
The one time I went to the Portsmouth Maritime Folk Festival in New Hampshire, which is always the last weekend of September, I came downstairs after the first night and told the desk clerk that I'd kept turning up the heat but the room never got warmer. He said the heat hadn't been turned on for the winter yet! Of course the next night was cold, too, but I brought up a blanket I keep in my car. A friend has since told me she always travels with an electric blanket, which sounds like a good idea.