Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (2024)

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    Driving from one state to another can be far and tiring. If you drive from Kuala Lumpur to Penang, the journey may take up to 4 to 6 hours. Therefore, it is common for drivers to make multiple stops at gas stations to rest and catch a bit of shuteye in their vehicle if they feel drowsy after driving for a few hours.

    Sleeping in the car may seem convenient at times and not be seen as harmful. But note that it is dangerous to sleep in the car with the engine running. Last year, we heard about the tragic passing of 3 college students after sleeping in their car with the engine running at a petrol station.

    Sleeping in the car with the air-conditioner running can be dangerous and even life-threatening. After reading this article, you may want to think again if you plan to take a nap in your car.

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    How can people die when sleeping in the car?

    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (1)

    The primary cause of death while sleeping in a car is carbon monoxide. This gas is a colourless, odourless gas released when burning fuels, such as coal, wood, charcoal, natural gas, and fuel oil. It usually dissipates quickly in the open air but is harmful to human health when it accumulates in enclosed areas. For instance, a parked car left running with all its windows closed.

    The gas kills when a large amount of it binds to our red blood cells and displaces oxygen which eventually suffocates our body from an adequate oxygen supply. Unfortunately, we cannot see, smell or hear the gas going through our bodies as we breathe it in. People sleeping in a car may die from carbon monoxide poisoning without ever experiencing symptoms.

    But people who are awake may experience common symptoms including headache, nausea, dizziness, vomiting, chest pain, difficulty in breathing, confusion, and seizure.

    The longer a person inhales the gas, the worse the symptoms. Furthermore, losing consciousness can happen within two hours if there is a lot of carbon monoxide in the air.

    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (2)

    Is it okay to sleep in the car with the windows rolled down to allow air circulation?

    Some might argue that keeping the windows open might prevent carbon monoxide accumulation. However, note that it will help only partially. According to the Ministry of Health (MOH), sleeping in the car is never a safe bet, even with the windows rolled down.

    This is as some of the air is entrapped in the circulation process, causing the level of carbon monoxide to increase and the oxygen level to decrease. Suffocation can happen as the same air is recirculated inside the car.

    You are advised to leave the car and take a nap at a safe spot with good air circulation.

    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (3)

    What should you do if you have symptoms of carbon monoxide poisoning?

    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (4)

    If you suspect a leak and experience any of the symptoms, including headache, nausea, dizziness, vomiting, chest pain, difficulty in breathing, confusion, and seizure, please do the following:

    1. Stop your engine, or drive to the nearest rest area (if you are driving)
    2. Open doors and windows to ventilate your vehicle
    3. Step outside and get fresh air immediately

    Call 999 and inform them that you have symptoms of carbon monoxide poisoning. Please do not ignore the symptoms as they could become severe and harm you.

    How can you prevent carbon monoxide poisoning?

    Although carbon monoxide is unseen and odourless, it is still entirely preventable. The best way to prevent accidental carbon monoxide poisoning is to prevent exposure in the first place:

    1. Never leave your vehicle engine running when parked in an enclosed or partially enclosed space. Even if you roll down your windows or open the garage door, carbon monoxide can reach dangerous levels in the vehicle.
    2. Regularly check and inspect your car exhaust system. Leakage in the exhaust system can allow carbon monoxide to enter your vehicle.
    3. Install a carbon monoxide detector in your car as a safety precaution. Since we are limited by our senses, the only way to be safe is to install a detector.
    4. Fix your car, even after a minor accident. Any damage or hole in your vehicle may allow more fume to enter the car through passenger compartments.

    Always put your safety first

    Based on the information that we have shared, we hope that it helps raise your awareness of the danger of sleeping in the car with the engine running. So the next time you think of sleeping in your car, think again. If you are tired, you may want to consider checking into a hotel. But if you really need to nap in your car, find a safe area, turn off the engine and roll down the windows slightly to ensure the cabin is well ventilated.

    Remember, safety always comes first.

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    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK (2024)

    FAQs

    Sleeping In The Car? Here’s Why You Shouldn’t | BJAK? ›

    People sleeping in a car may die from carbon monoxide poisoning without ever experiencing symptoms.

    Why should you not sleep in a car? ›

    Sleeping in cars can lead to life-threatening situations such as suffocation or carbon monoxide poisoning if the engine is left running in a poorly ventilated space. Additionally, parked vehicles can quickly become either too hot or too cold, depending on the weather, creating an unsafe environment for the occupants.

    Is it unsafe to sleep in your car? ›

    No, it's not safe to sleep lying down in a moving car. While it may be more comfortable to lie in the back seat or recline in the passenger seat, you'll be putting yourself at risk of serious injury in the event of an accident. First, the seatbelt and airbag won't be able to do their job of protecting you.

    Do you need to crack the window when sleeping in a car? ›

    Open a window enough to ventilate

    Breathing all night in a vehicle will fog up windows and collect moisture where you don't want it. Ventilation is key. Open your sunroof or a window just wide enough so that an animal or person can't get in. Get some cheap mesh and cut it 2-3 inches wider than the opening.

    Is it illegal to sleep in your car in Florida? ›

    The Law on Sleeping in Your Car in Florida

    There is no federal law that prohibits motorists from sleeping inside their vehicle. However, in Florida, drivers are only allowed to sleep inside their vehicle for a maximum of three hours. You are not allowed to park overnight and sleep in your vehicle.

    Why does it feel so good to sleep in the car? ›

    Research has shown evidence that the brain quickly becomes synchronized to repetitive vibration patterns. This synchronization can facilitate the early stages of sleep and lead you to dreamland.

    How do you survive sleeping in a car? ›

    Create a Comfortable Environment
    1. Limit the Light. Light from street lamps or security flood lights can be useful for safety purposes, but can make it difficult to stay asleep. ...
    2. Decrease the Noise. ...
    3. Recline the Seat. ...
    4. Use a Pillow. ...
    5. Sleep on a Mattress. ...
    6. Keep the Car Cool. ...
    7. Rest Stops and Welcome Centers. ...
    8. National and State Parks.
    Jun 14, 2023

    Is it safe to sleep in a car with AC on? ›

    Although the AC provides a comfortable temperature, pay attention not to leave the car engine running for too long when you sleep. Turn off the AC and ensure good air circulation by opening the windshield slightly. This will help avoid the risk of carbon monoxide poisoning and maintain the air quality inside the car.

    Where is the safest place to sleep in your car? ›

    For safe and discreet overnight car stays, park at Walmart or 24-hour grocery stores, ensuring permission from store management; these locations offer well-lit, monitored parking and access to essentials. Use high-quality window covers for privacy and rotate locations to maintain a low profile.

    Is it bad to sleep in your car while its running? ›

    Restful sleep may not be worth justifying with the amount of risk sleeping in your car can impose. In the very worst case, falling asleep with the engine running can cause carbon monoxide levels to skyrocket inside your cabin, resulting in death.

    Is it bad to sleep in a car with the windows up? ›

    Fresh air circulation is crucial for a peaceful night's sleep, so crack a window or two to keep the air in your car circulating, or pop the sunroof open if you have one. Create cross-ventilation by positioning the car so that there is airflow when windows are open.

    Why should you never leave your window open at night? ›

    Sleeping with an open window can negatively impact your health as well. While cold air itself can't make you sick — colds and flus occur because germs overwhelm a person's immune system — it can potentially dry out nasal cavities, resulting in increased mucus production and a possible sinus infection.

    What state can you not sleep in your car? ›

    Sleeping in your car laws by state
    StateOvernight parking at rest stops
    Delaware4-hour limit for parking, no overnight parking or camping
    Florida3-hour limit for parking, no overnight parking or camping
    GeorgiaNot allowed
    HawaiiNot allowed
    46 more rows
    Aug 26, 2020

    Is it safe to sleep in a car with the engine off? ›

    Always put your safety first

    So the next time you think of sleeping in your car, think again. If you are tired, you may want to consider checking into a hotel. But if you really need to nap in your car, find a safe area, turn off the engine and roll down the windows slightly to ensure the cabin is well ventilated.

    Are you allowed to fall asleep in your car? ›

    There's no specific federal law that expressly forbids sleeping in your car. However, there are federal laws that indirectly limit the instances in which sleeping in your car is legal: Private Property Laws: Trespassing on private property is a quick way to make sleeping in your car illegal.

    Why can't you sleep in your own car? ›

    There's no specific federal law that expressly forbids sleeping in your car. However, there are federal laws that indirectly limit the instances in which sleeping in your car is legal: Private Property Laws: Trespassing on private property is a quick way to make sleeping in your car illegal.

    Is it safe to sleep in a running car with the heat on? ›

    Is it safe to run the heat or air conditioning while napping in my car? Yes, but only if you're very careful to avoid exposure to carbon monoxide (a clear, odorless gas found in vehicle exhaust), which can get inside your vehicle and lead to suffocation and death.

    What is the best position to sleep in a car? ›

    Recline your seat if you can.

    While sleeping in the car isn't the easiest way to get some rest, you'll have a much easier time of it if you can lean back a little. Try to head up to the front seat and lean back as much as possible. If you can't recline, use a pillow to cushion your head and lean against the window.

    How long can you stay in a car with the engine running? ›

    "You can safely leave your car idling for many, many hours," he says. "How long that is going to last depends on two things, the amount of gas in your tank and the size of your engine." Moody says on average, a vehicle burns about half a gallon an hour while idling.

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