Opps, forgot to mention I always top that system off with a toque.
That's a funny looking beanie for those of us living in Baja Canada.
Funny looking? My avatar is funny looking now? (I'm wearing my toque)
Oh, and on topic - my winter system is a 27 inch wide full lenght blue pad on top of a 25 inch wide full length big agnes insulated aircore. if I'm expecting really cold (below -25) there is a second blue foam pad underneath it.
I'm typically sleeping then a full fleece top and bottom, toque, balaclava, -15C rated down bag, and then with a
second synthetic sleeping bag as an overbag.
If it's warmer I adjust the layers accordingly.