Why Can't You Sleep in a Car?

2 Answers
LaCharlotte
07/29/25 7:26am
The reasons why you shouldn't sleep in a car are: when the temperature is low, it's easy to catch a cold; when the temperature is high, it's easy to experience oxygen deprivation. It can also lead to muscle fatigue. If ventilation is poor, it may cause chest tightness, and in severe cases, could lead to suffocation. Precautions for resting in a car are as follows: Open windows for ventilation: Maintain air circulation. Leaving a small gap can facilitate air flow. Turn on the external air circulation mode: Maintain the temperature and air quality inside the car. To keep the air circulating smoothly inside the car, switch the circulation mode to external. Regularly check the exhaust pipe: Prevent carbon monoxide poisoning. If carbon monoxide from the vehicle's exhaust leaks into the car, it can gradually accumulate and increase in concentration, leading to poisoning. If the exhaust pipe is damaged, exhaust gases can more easily enter the car, increasing the risk.
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McCassidy
08/12/25 10:44am
I sincerely advise you not to sleep in the car—it's extremely dangerous. I remember last year when I was returning from a business trip, I was so exhausted that I pulled over at a service area to take a nap with the windows closed and the AC on for warmth. When I woke up, I had a splitting headache and felt completely weak. Later, the doctor told me it was mild carbon monoxide poisoning—exhaust fumes had circulated back into the car. Without proper airflow and oxygen, keeping the engine running could even be fatal. The same goes for summer—the temperature inside the car can skyrocket like an oven, leading to dehydration or unconsciousness. Not to mention the risks of doors locking accidentally or theft. Now, no matter how tired I am while driving, I always find a proper rest stop or hotel. Sleeping in the car is literally gambling with your life.
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