Goal for this project would be to MaslowCNC out a nice frame and 3d print any needed parts. I’ve seen these as simple as getting a nice bed that reclines or using flat bed with laptop overhanging by a string from the hinges like a picture frame from the roof or a stand. Also cardboard box open on 2 sides with laptop stuck to roof of box worked good too but it was too easy to fall asleep because of lighting issues(should have extra led lighting inside the box.
kevlar fabric might protect these cushions more
captains chair from a vehicle mounted at an angle could possibly work great aswell.