qdude79

I don't know why, but this occurred to me yesterday. I'm building my 'Runner for outdoor "stuff," and want to sleep in it. Assuming some nights will be cold, I'll want to have all windows up.

Is this safe?

Is there enough "breathability" to the outside world to sustain oxygen for one or two people for a night, or are they too "airtight?" This is probably a completely assinine question, but it worries me! I know you do this in an RV, but that's much bigger than the cargo area of my 2Gen.

Sincerely,

Suffocating in Seattle

ozziesironmanoffroad

ive done it in my moms expedition with the windows rolled up. was fine. but everyone reccomends cracking at least one window just for ventilation.

904_runner

Well, i think youll be fine.

I sleep in the back of mine with everything rolled up(try to anyways), Fine, but it usually gets too hot and i have to roll down some windows. Now i haven't slept in mine in the winter, only summer

Hayes

your cab can't be completely air tight. If nothing else, air will come in via the air vents. Cracking a window wouldn't be the worst idea, but I don't think it would hurt you to leave them all up

76ANTHONY

unless its 10 degress outside, you'll crack a window.

SLOWBOOST

ive slept on bench seats in f-150s with the windows rolled up for races, just smelled a little in the morning from the beer farts.

qdude79

Actually, that's about the temp I had in mind. Camped in 10deg overnight weather once and I 'bout froze my nose... (please consider, I'm from Cali and that's freakin' COLD to me!).

I know having a window cracked won't make that much of a difference in actual temp, but I couldn't think of any reason to think that it would just automatically be safe...

To combat the cold, I installed a 12v outlet in the rear driver's side cargo compartment. Deep cycle battery + electric blanket = good!

904_runner

What? no rear heater to get it toasty before bed time?

probably wouldn't last long anyways,

scuba

as said previously, i wouldn't worry about running out of oxygen.
I once slept in my 86 standard cab p/u when it was about 40, not terribly cold but its pretty chilly.
all i can say is my back hurt like crap in the morning.

Matt16

I'd crack a window, otherwise the humidity and condensation makes everything damp. I woke up and I was pretty faster, meaning I was a little short on air (actually, a little too much CO2 biologically), so yes you will survive, but you will sleep better with a window cracked.

Crawdad

You're going to want to crack a window after about 20 minutes in there - it's going to get humid and stuffy . But I wouldn't worry anyway, just don't leave the truck running.

4runnerguy

hey u will be fine i sleeped in a 91 4runner and it was way below. i sleeped like a baby on the drivers seat, the only thing my feet were frozen in the morning, but it did get a bit of humitity

Fink

You'll be just fine. You don't need much fresh air to prevent asphyxiation.

You would have to be breathing at a very elevated rate to start re-breathing the CO2 your body was producing.

However, given that the air that we exhale has a relative humidity of 100%...you are going to want to do something to keep it from getting too humid in there - I would usually just tilt my sunroof up as long as the weather permitted it.

Fink

EDIT: If it would make you feel better, make sure your air vents were on the "fresh air" option, versus "recirc."

dirtoyboy

If ya wanna stay really warm and sleep soundly just hook up a hose from your exhaust right into the window....

76ANTHONY

HEY IM FROM FRESNO, and thats cold as hell to me too, but you'll end up crackin a window.....