Lol hope this doesn't make you feel old... my parents had a Dodge van outfitted with a canvas bunk bed in the back for camping trips. I slept on the top bunk, my older brother slept on the bottom bunk, my youngest brother slept on the back seat, and my parents slept on the floor in the back next to the bunks. In the early years, they couldn't afford a babysitter, so they'd put us to bed in the back of the van and go to the drive-in movies. My dad installed a clothesline with dark curtains right behind the front seats. We could still hear the movie, though, and I got very good at surreptitiously peeking over the clothesline. Ah, memories!
