If you sleep in your car are you supposed to crack open a window?

if your car has a vent no you dont have to, but you will fog up the windows from your body heat radiating out,

Ac vents are enough to circulate air

if you have it running, carbon monoxide could hurt you.

Lol I usually do to keep humidity down .. I’m a heavy breather

Only when driving

Is your car parked outside or in a garage?

If it’s outside, you should be fine. But cracking the window a smidge would be a safe bet.

Truckers sleep inside the cab of their trucks with no issues…even in winter.

https://www.theroadtripexpert.com/is-it-safe-to-sleep-in-a-car/#:~:text=No%2C%20you%20don't%20need,to%20enter%20throughout%20the%20night.

You dont need to because cars have vents but it wont hurt to crack a window either

Only if it’s running .

Yeah, otherwise you'll suffocate within your own Co2. 🥺🤪😆🤗🤗

Yes.

You let one rip didn't yah? Yah nasty bish...