All-year around / medium comforters are exactly that: not too warm, but cozy enough for medium to lower temperatures. Typically used from fall through spring time, our all-year round comforters can be used for most of the seasons.
Please keep in mind that, it also depends on your personal preference, your body temperature (are you a warm or, cold sleeper?) as well as your inside room temperature. We recommend our medium comforters for room temperatures between 55 and 65 degrees.