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Common mistakes when car camping in Japan
The number one enemy of a good night's sleep is the gap between folded seats. "I'll just recline the seat" sounds fine until a ridge digs into your lower back at 2 a.m. A car camping mattress that levels out the gaps is the first thing worth buying. How flat your car can get varies a lot by model - see our guide on choosing a car for car camping.
The second oversight is where to stay. Michi-no-eki (roadside stations) are rest facilities, not accommodation, and convenience store parking lots are private property. The safe choices are RV parks and auto campsites where overnight stays are explicitly welcome. Details in our rules and etiquette guide.
The most important safety rule: never sleep with the engine running. Carbon monoxide poisoning is a real risk, especially when snow can block the exhaust pipe. Manage temperature without the engine - a window mesh and fan in summer, a hot water bottle or electric blanket in winter.
Do not forget privacy either. Without curtains or sunshades, your car interior is on full display, which is uncomfortable and a security risk.
Finally, sitting still for hours in a cramped position raises the risk of economy class syndrome. Move your body regularly and drink plenty of water.
Frequently asked questions
Can I sleep overnight at a michi-no-eki?
They are rest facilities, not campgrounds. A nap is fine; treating them as accommodation is not.
Can I leave the engine running while I sleep?
No - carbon monoxide poisoning is a real risk, and some areas ban idling by ordinance. Use bedding instead.
Does a nap need different gear than an overnight stay?
Yes. A nap needs little more than a blanket and sunshade; overnight stays add a mattress and ventilation.
My car does not fold fully flat. Can I still car camp?
Yes, with a mattress that bridges the gaps. Comfort still varies a lot between car models.
How do I handle summer heat?
Window mesh for airflow plus a portable fan is the basic setup. Parking somewhere cool and elevated helps too.
How do I stay warm in winter?
A hot water bottle or an electric blanket paired with a portable power station. Never idle the engine all night.
What about window condensation?
Ventilation is the fix. Crack a window with mesh on it, and wipe the glass down in the morning.
Any tips for sleeping two or more people?
Move luggage to the front seats before bed and use storage nets to keep small items organized.