Can car mattresses be used on highways?

[SanSavannah]

Car mattresses can be used on highways. Here is the relevant introduction: 1. Function: The car inflatable bed not only provides a comfortable sleeping space, but also serves as a very comfortable play space. The constructed flat, spacious, comfortable, and safe bed surface space allows for sitting, lying, reclining, or crawling in various postures for rest or play, helping to alleviate the boredom of travel. 2. Advantages: Car inflatable mattresses can be applied to various types of vehicles, and they are foldable and removable for washing, making them more convenient and efficient.

[KadenLynn]

The worst thing about driving on the highway is encountering unexpected situations, and the key point about car mattresses must be made clear—lying down while driving is absolutely not allowed! Traffic regulations clearly state that passengers must sit properly while the vehicle is in motion. Last year, my cousin was even lectured by traffic police for filming a video in a service area—lying flat during sudden braking means the seatbelt can't secure the waist and abdomen, causing the head to slam directly into the dashboard. If you're planning a self-drive trip to Tibet, I recommend bringing an inflatable mattress specifically for resting in service areas—it’s comfortable and space-saving. Remember last year when a driver parked on the highway emergency lane to lay out a mattress and sleep? They were fined 6 points and ended up in the local news.

[OmarMarie]

My two kids always insist on lying flat in the back seat. I specifically checked Article 77 of the 'Road Traffic Safety Law Implementation Regulations': Passengers are not allowed to interfere with driving while the vehicle is in motion. When unfolded, a folding mattress takes up at least three-quarters of the rear seat space, and people can be tossed around during sharp turns. Last time when driving back from Hangzhou to Jiangxi, I tried laying a memory foam mattress on the back seat, but at the toll station, a traffic police officer knocked on the window and warned me that 'this counts as illegal modification.' Now my experience is: It's fine to keep the mattress in the trunk as luggage, but it must not be used while driving. If you want to rest, unfold it at a service area, and remember to put a non-slip mat underneath to prevent the mattress from shifting.

[Carole]

Having been in the car modification industry for over a decade, I've witnessed countless dangerous cases. The biggest issue with car mattresses is that they alter the vehicle's safety structure—side airbags in the seats can be blocked, and the three-point seatbelts lose their ability to secure the waist. Test data shows that during an emergency brake at 60km/h, the injury probability for a lying passenger is seven times higher than for someone in a seated position. Not to mention, some low-quality foam mattresses release formaldehyde when heated. If you truly need rest during long trips, I recommend opting for factory-installed reclining seats or, like my newly acquired MPV, seats with built-in aviation-style features. Converting your car into a bed might seem comfortable, but it's essentially gambling with your life—don't trade safety for half an hour of comfort.

[LaBeau]

A survivor of a high-speed tire blowout warns you: Mattresses in the car are ticking time bombs! Last week, while carrying camping gear to Anji, the inflatable mattress in the back seat wasn’t secured properly. During the tire blowout, the mattress slammed into the front headrest, causing my wife to suffer a neck sprain—she’s still undergoing acupuncture. The traffic police later explained: Any unsecured item over 0.5 kg counts as mixed passenger and cargo transport, incurring a 200-yuan fine. If you really want to use a mattress for road trips, remember three things: Always store it in the trunk and secure it with a cargo net; ensure everyone wears seat belts while driving; and keep the mattress thickness under 15 cm to avoid blocking the rearview mirror.

[DianaFitz]

Experienced long-haul truck drivers' advice: Using a mattress in a sedan on the highway is playing with fire. Regular passenger cars have a low center of gravity, and placing thick padding in the back seat can disrupt the vehicle's balance. Last year's pile-up on the Shanghai-Kunming Expressway was caused by a mattress blocking the rear windshield of the leading car. My current solution is to carry a Tesla-specific inflatable pad, which I only use for 20 minutes while charging at Supercharger stations. The key is to choose anti-slip material that can be rolled up and thrown into the trunk in 0.5 seconds in an emergency. Remember to lock the doors and open the sunroof for ventilation even during rest stops, as running the AC in a sealed space can easily lead to carbon monoxide poisoning.