I should edit my comment to "Pugs (popup gizmos) are very popular amongst hybrid and popup campers who partake of these boards (FRF, RV.net, iRV2, popup and hybrid explorer).
That is more accurate. Just consider, though, that most trailer owners do not regularly participate in trailer forums.
In my experience, this summer we stayed twice at a large state CG in WI called Peninsula SP and I looked carefully as I walked the dogs and drove around. I was one of two hybrids with pugs over 14 days at PSP. Two more had modded survival blankets and the rest had nothing.
They really do work. Give Bob a call at popup gizmos and talk over your situation. I know he has a vested interest in selling his product, but I found him to honestly answer my detailed questions and not to oversell their benefits.
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD