While we didn't use PopUp Gizmo's covers, I made my own from space blankets which covered the top and sides of the bunks. Difference was night and day, after the covers we had no more condensation issues, camper stayed warmer / cooler, and the sun didn't wake up the kids too early.
Something like that will surely help.
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Karl - Southeast, NY
2020 377 RLBH
2018 Ram 3500 Mega Limited 6.7L Cummins w/ Aisin
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