I use the Neo Air shorty and a long Z-Rest year round
if camping above 9K-ish.
I like the extra cushion ... if you are young and
are comfortable with only closed cell then that's
the way to go.
The closed cell next to your body is warmer more or less
b/c a mass of air is gonna move around in an air matt.
and you are going to have to continually heat it.
Something like that and thermodynamics...
I completely agree with the shoe responses above.
On multi day trips you have to rely on the shoes not
failing. I wouldn't entrust a "recreational" shoe
to a huge endeavor.
Just a note ... if there is any misunderstanding... I am
very very pro Bear Can. I follow all the rules for food
storage and never have lost food to any animals.
You will see bear tracks in April at high elevations.
I wouldn't go then w/o one. And one of the caveat for
no can in Yose in Jan/Feb is that you need to be
above 7200 ft.
