I cant stay warm in my Golite Ultra 20

You mentioned "a damp 40 degrees". Were you, the quilt, and the rest of the stuff you slept with relatively dry?

FWIW, my Ultra 20 weighs 19.21oz and the person I bought it from added a bit of down to one of the baffles which was underfilled. I think most Ultra 20's are right about 19oz without the straps.

My Ultra 20 is 18.95oz without the straps and I have used it down to 24* fairly comfortably with only a silk weight baselayer top and bottom, though I think that is nearing the lower limit for me.

I use a BPL Pro 90 Balaclava with my quilt, A fleece balaclava should have been warm enough at 40* though. There are so many variables that it could be, many of which have little to do with gear. Have you used that pad combo before? I hear some people rave about how warm the Neoair is, but others seem to find it cold at 40*.

Go back to your WM bag. Personally I struggle to keep warm in quilts no matter how much loft they offer. Not everyone sleeps warm with a quilt (unless it's a super long super wide one like I use at home). Or you can add a bivy to you sleep system, but I can't stand the claustrophic feeling of sleeping in a bivy bag

I broke down and got a scale. My ultra came in at 19oz on the nose so I don’t believe it under filled.

Yes It was the first time out on the Neoair and the thinlite. But I normaly only have only a pack under my feet.

Yes it was very damp. My girl thought it had rained it was so wet inside from condensation. I don’t believe this degraded the loft and the quilt never touched the shelter.

There are so many variables that it could be. I will test some things out and give it another shot before I go back to the bag.

Thanks again for all your help.