Thanks Charlie Gotta. The item you referenced is not large enough for the two skylights in my Unity so we will make our own.
After a much thought, a consultation with my spouse and some research of available materials, we have settled on using the following:
For the top reflective material we will cut a section to fit, from a "Space All-Weather Blanket" from REI Co-op @
http://bit.ly/2Qcx4Vf.
Then, sew this to a scrap of cloth possibly a towel for the sides and bottom. Inside this case will be a piece of dense foam rubber from Michele's Craft Store or another supplier cut to fit the show skylight and the large skylight near the cabin. Basically, we intend to create a reflective foam filled insert like the one that Camco offers.
I will keep you posted on how this all works and possibly offer up a photo or two.