Adding A/C & Heat to 36" sleeper

[Moose]

Thanks guys, I had some time to research all the heat & cool options. Also, some clarification on the run. It's very regional TX, LA, MS & AL. What couple nights that I'm somewhere with extreme cold I'm just going to have to suck it up and idle it. I've slept just fine in it around 40-ish with engine off and nothing on, what I'm going to need more is A/C so I'm going to focus more on the battery powered cooling units.

What set this off besides a real disdain in idling the truck even though it's not mandated and I woke up shivering to this last week.., So a t-stat is in my near future.