We are home from a trip to the midwest. On this trip I used a piece of Reflectix over the top of the skylight, secured with small binder clips to the skylight hatch edge, when were were camped longer than overnight. It was easy to attach and remove by opening the hatch and standing on the bed. I wish that I'd thought of it years ago. It made a terrific difference in keeping the bunk cool.
2008 Northern Lite 9-6 Q Classic SE
2007 GMC 2500HD