Hi Mark, Here's some photos showing the wedge pillows in place, self inflating camping mat on top, plus the laundry bag which fit the wedge pillows perfectly. Note, you'll see a gap between the thick end of the wedge and the seat back, we sleep with our heads at the back end, it's only our legs lying on that bit, so very little weight pressing down and with a good self inflating camping mat on top it feels pretty flat to me, and believe me, I'm a fussy sleeper! Just for your reference, I'm 6'1".