I did 22* w/ a nest, pad, WM Alpinlite, & clothes.
After experimenting for several days during this cold front, I noticed that my bag would be wet in the morning unless I used my Precip rain pants & jacket as a mid layer.
I also practiced going to the ground in my Hennessy last night and putting the nest on top of my WM bag. It was Nirvana warm. If only it was this nice while floating in the HH.