Is it harmful to sleep in a car with the air conditioning on all night?

[StMelanie]

It is harmful, and it is best not to turn on the air conditioning when sleeping in a car. More extended information is as follows: Overview: In a closed car, a car with the air conditioning on will produce a large amount of carbon monoxide. In just over 20 minutes, the carbon monoxide concentration will exceed the standard severely, causing a noticeable sense of suffocation. Regardless of the type of car or whether it is set to internal or external circulation, carbon monoxide will enter the cabin. In a closed car, a car with the air conditioning on will produce a large amount of carbon monoxide, and in just over 20 minutes, the carbon monoxide concentration will exceed the standard severely. Hazards: When the car is moving, the carbon monoxide produced will decrease or disappear with the rapid convection of air. However, when idling, even outdoors, if there is no wind, carbon monoxide will accumulate around the car, and the concentration will increase over time. At this time, if the car is set to external circulation, a large amount of carbon monoxide from outside the car may be sucked into the car. But don't think that turning on internal circulation while sleeping is safe. If you sleep in a car for a long time with the windows closed and the air conditioning on internal circulation, you may suffer from carbon dioxide poisoning.

[JulianaRose]

As someone who frequently takes road trips, I once felt exhausted during a long self-drive tour and decided to sleep overnight in a service area with the air conditioning on. The next morning, I woke up dizzy and groggy, and also noticed the car battery was low, almost preventing the car from starting. Later, I consulted a friend and learned that this practice carries three major hazards: carbon monoxide from the exhaust can gradually accumulate, especially in a closed cabin, leading to poisoning or suffocation; prolonged engine idling accelerates wear and wastes fuel; and sleeping in a cramped space can lead to poor rest, increasing the risk of catching a cold or back pain. It's recommended to avoid sleeping like this. If necessary, choose an open, well-ventilated spot, crack the windows for a short nap, or find a nearby hotel for a safer and more comfortable rest. Don’t risk your safety for temporary convenience. Putting safety first is always the wisest choice.

[Gollum]

I'm quite concerned about a healthy lifestyle, and I must remind you that sleeping in a car with the air conditioning on overnight is very detrimental to health. Car exhaust contains harmful gases such as carbon monoxide and carbon dioxide, which can lead to oxygen deprivation, headaches, nausea, or even more severe issues if ventilation is poor. Additionally, idling the engine consumes fuel, generates noise, affects sleep quality, and increases stress. Prolonged exposure may also harm the respiratory system. It's best not to take the risk—find a quiet indoor environment to rest, ensuring ample oxygen and comfort. After all, health is priceless and shouldn't be casually neglected. Prevention is key; it's better to put in a little extra effort to find a safe spot and ensure a peaceful night's rest.

[VonRosalie]

As an experienced driver, I understand that running the vehicle with the air conditioning on while sleeping overnight can harm the car's condition. Continuous engine operation may lead to overheating and increased wear risks. The battery could discharge excessively, making it difficult to start the car the next day. Fuel consumption also rises significantly, wasting money and outweighing any benefits. Moreover, prolonged operation of the air conditioning system affects its lifespan. It's advisable to turn off the engine promptly to avoid these issues, protect your beloved car, extend its lifespan, and prioritize safe parking at all times.