Since this isn't specified, I need to ask:

With the rear seat(s) down flat (and do they REALLY fold down flat?), what is the 'bed length' (in inches) from the front seat(s) to the rear hatch (closed)?

I ask because I'm pondering using a CX-5 (which I haven't bought, yet) as an occasional 'camper' ... and I'm 6'2" (74"). I want to know if I could lay out a sleeping bag on the flat 'bed' when the rear seats are folded flat.
... and, if not perfectly length-wise, how about diagonally?

Thanks - for going out and measuring.

 

I don't have the car here to measure it but I can tell you the do lay flat. That was a big deal to my wife who hauls hockey gear all winter.