I slept in the car a LOT years ago. My job was in a neighboring state and I was also in school during nights and weekends … while working full time. There was no “schedule,” I worked, studied, did homework, and slept wherever I could. I went through this routine with 2 different vehicles - a 2.2L legacy and a 3.3L town and country.
The TC was the best. For one, having front and rear AC just provided much more adaptable ventilation. Leave the front on fresh, low, while letting the rear do 90% of the work was ideal. The V6 oddly enough seemed to require less fuel when idling for a few hours in august to work/study/sleep or whatever. While I couldn’t stretch out, the rear bench somehow worked repeatedly well for side-sleeping. For all that vehicle was (it was a 2002 I think), it was a really good vehicle, though the legacy was more durable and required less upkeep.