@Mike - this is a 900 fill jacket, long length, hood, pullover style, and very puffy - but definitely not a winter class coat. I brought synth pants because I don't have a pair of down pants right now, or I would have brought those to save a little weight, maybe. I wasn't expecting sustained foul weather, and if I was, I would have switched to an all-synthetic system (including jacket, pants, and quilt).
I don't think I ever wore the jacket at rest stops. Day temps were in the 50s or higher, so I usually added my windshirt, rain jacket, and watch cap at cool rest stops.