An variation of the above question: in the event of a side curtain airbag deployment, what happens to rear-seat passengers who rest their heads on the doors?
Nothing much, probably. Unless they somehow manage to get their head in between the glass and curtain airbag. With side impacts from cars on cars the door frames will bulge out at the top which may allow for more space for the curtain airbags. Though I feel this won’t help when you get t-boned by a F350 in your sedan.