Can you sleep in a car overnight with the windows up?

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Tags

1. #completely
2. #there
3. #windows
4. #using
5. #leave
6. #eventually
7. #oxygen
8. #person
9. #hours
10. #couple
11. #breath
12. #might
13. #closed
14. #window
15. #night
16. #temperature
17. #sleep
18. #nothing
19. #gasping