I’m 6’2 and camped in the back on mine using this for 1 night. Wasn’t bad I would give it like a B-

Gotta put something in the rear passenger foot wells to prop it up, a plastic tote on one side and an ice chest on the other worked for me. A wood platform to negate the slope of the back cargo area going up to the back seats folded down would be great but I just used blankets folded at lessening thickeness going up