When it came time to sleep, the back passenger seats reclined into a full bed, and the roof popped up to reveal another, smaller bed. Each sleeping quarter had reading lights and USB ports, so it wasn't difficult to settle in at night.
To get into the upstairs area, where I slept, I had to step onto the driver's seat and climb up onto the bed.
Though the website advertises the area as being able to sleep two people, I found it just big enough to fit one — and even that was a bit tight. With my head facing opposite the entrance, I'd smack my forehead against the ceiling at least a few times a night, and my feet would dangle out into the van's main area.
The sleeping arrangement wasn't the most comfortable (it's a van, not the Ritz) down below, either. The bottom bed was just the passenger seats reclined all the way back, so the bed was a bit uneven, and seat belt holsters would poke into my family members' backs.
My bed was essentially just a foam pad on top of the car's ceiling. But after a long day of hiking or eating myself into a cheese coma, having a lumpy sleeping pad didn't take away from a decent night's sleep … that much.