70 out of 109 major Japanese municipalities have not developed guidelines for sleeping in cars during disasters

A Japanese outlet conducted a two-night test of heat relief products for sleeping in a car, using items from Muji and Nitori costing up to 5000 yen. On the first night at 33°C, the cabin temperature dropped to 25°C by morning; on the second night at 40°C, it stayed above 30°C. The test concluded that pre-cooling the cabin with air conditioning is essential, and that sleeping in a car should be avoided during extreme heat due to heatstroke risk.

According to the Kumamoto Prefecture Disaster Response Headquarters, as of 6 a.m. on January 30, about 10,000 people from 4,000 households were staying in approximately 400 designated evacuation centers across 30 municipalities. However, these figures do not include those sleeping in vehicles or sheltering at home, and the actual number of affected people is believed to be higher. In heavily damaged areas such as Hikawa Town and Uki City, schools and disaster prevention centers that would normally serve as shelters were themselves damaged by the earthquake and power outages, delaying their opening.

After a magnitude 7 earthquake in Kumamoto Prefecture, doctors report a rise in economy class syndrome cases. About 70% of victims slept in cars, leading to hospitalizations and deaths.

Amazon is offering a limited-time deal on the Dabbsson 2000L portable power station, reducing its price from ¥169,800 to ¥89,000. The unit has a 2048Wh capacity and 2200W output (up to 3300W with Power-Boost), uses LiFePO4 batteries rated for 4000 cycles, and retains over 80% capacity after 80% cycles. It weighs 18.6 kg and includes 12 outlets: 6 AC, 2 USB-A, 2 USB-C, and a car port, with a UPS switchover time of 0.015 seconds.

Following the July 28, 2026 earthquake in Kumamoto, many residents are sleeping in their cars. Doctors warn of the risk of economy class syndrome, which can be fatal. Recommendations include reclining seats, getting out every few hours to move legs, and staying hydrated.

Rocky 2 showcased its Mountain Village camper conversion of a popular minivan at the Tokyo Camping Car Show 2026. The vehicle is designed for both everyday driving and comfortable sleeping inside. The event took place on July 11–12, 2026 at Tokyo Big Sight.