Do people use this only in the hot months? It's beginning to get cooler where I live and from now until around April we do the opposite and use a heated mattres

Do people use this only in the hot months? It's beginning to get cooler where I live and from now until around April we do the opposite and use a heated mattress pad. For me there's nothing better than getting into a warm bed in a cold room. I immediately turn off the heat after getting in though, otherwise I overheat and sweat.