From the moment you cover up with a down comforter, you will notice how much warmer you feel on a chilly winter night. One of the greatest benefits of down is the ability to trap body heat within the loft of the filling, keeping you warm all night long. The more down that fills the comforter, the more warmth and insulation it will provide.
The same feature that causes down comforters to keep you warm will also keep you cool in the summer. Down is highly breathable, able to wick sweat and moisture away from your skin and will keep you from overheating. If you tend to be a warm sleeper or feel clammy at night, you can maintain a more even body temperature through the night with a down comforter.
Down comforters are lightweight to sleep under and will keep you warm without adding extra weight and bulk. You have no need to layer on more and more blankets when the weather turns cold. Making your bed in the morning takes just a simple shake and straightening rather than smoothing each and every layer of blankets.
Another benefit of down comforters is how easy they are to care for. Believe it or not, the fewer times you wash one, the better. If you frequently clean it, the down and feathers will break down and lose their ability to insulate. Protect the comforter with a duvet cover, and you will only need to clean the comforter if it becomes soiled or before storing it away.