Scout Campers, which specializes in off ... extra storage, and a queen bed. See inside the tiny home on pickup truck wheels, which is now available for pre-order: ...
The same logic is why pickup-bed campers have long been a favorite for overlanders. You can haul heavy, messy gear in a proper truck bed, then climb into an attached, enclosed sleeping platform.
We've had a lot of slide-in truck campers, where you leave the truck bed, but you compromise a lot of space by doing that. And so we knew that we wanted a camper that mounted directly to the frame ...