Heyo, a question for all you snow-lovers out there, what do you find you need in a sleeping bag to be comfortable camping in the snow? I currently am thinking of replacing my 15degF (-10C) bag with a 0degF(-18C) one. Anyone recomend an even warmer one? Does anyone have a waterproof bag that they've liked?

Cheers for the opinions, i'll bake a big batch of thankyou cookies when i get back! :)