Fascinating...I had briefly contemplated pulling that down and making that a shelf in that cubby, as I had one that was useful in my Outback. I may pull that down now and insulate the crap out of it. I will be pulling the sides down behind the nightstands, as it does seem to be chilly on the sides.
I like the rheostat you installed for the lights above the bed. Do the lights flicker at all when dimmed?
TV: 2015 F-350 DRW, CC, 4x4, with 14k GVWR package, 98 gallon TransferFlow Aux Tank, Timbren Shocks
TH: 2014 Voltage 3950, Sailun S637 all around