I get condensation in a 25 foot camper with 2 people in it. I just vent a window.Do you find condensation to be an issue sleepling in the back of your enclosed pickup in the falltime? My dad and I used to do that on air matresses many years ago in the back of his pickup and I recall waking up in the morning with the inside top dripping wet. Maybe alone vs two guys there might not be enough to worry about?
The bunk gives you a place to store gear underneath, but got to remember not to sit up straight first thing in the morning. Looks good!