This Down comforter was flat when I took it out of the bag so I was disappointed at first because the photo shows it as puffy. After a bit it became puffy! I have an electric mattress cover on my bed to warm it up before I get in. The comforter is so warm and cozy it keeps all the warmth in with just the right weight - it feels light and fluffy. I find it even more of a challenge to get out of bed. A couple of nights I was actually too hot! If you want extra warmth while you sleep, GET THIS comforter!!!