Don't mean to hi-jack the thread but...

I do so want to move to a quilt, but spent a tremendously cold night in the Canyonlands a couple of springs ago freezing my rear-end off in a JRB No-sniveler and bivy. I was on a Neoair AND closed-cell. Granted, the ground was cold, but the problem was drafts, and perhaps the quilt just wasn't lofty enough? Walked back to the car for my Alpinlite the next morning and was fine for the rest of the trip.

Been looking at a Nunatak 20degree at 20oz and tempted to try again with a bit beefier quilt. Pricey, but would love to carve that 12 oz and space out of my pack!