Well I will say: Airbags have about 2 feet of "cushion" to catch the driver. A "Bedroom Airbag is going to have more room and time to inflate. Also, I suppose

Well I will say: Airbags have about 2 feet of "cushion" to catch the driver. A "Bedroom Airbag is going to have more room and time to inflate. Also, I suppose you could strap yourself in. And RVs have a lot more momentum and are inherently safer in crashes, kind of like how schoolbusses don't have seat belts. As you alluded, you could have a "safety blanket that is normally loose but tightens on impact. Finally, typically head on crashes are the danger for RV, and the bed is in the back, so that is a gigantic amount of the vehicle to absorb impact and damage.