Originally Posted by sklingsick
I am having the same issue with condensation forming under my mattress on a 2015 J-Feather UL X23F. It is so much that it is staining the mattress, has anyone contacted Jayco to see if this is a design issue. I'm gong to Lowes and get some Reflectix insulation and see if it helps. I know if you can get the dew point to be in the insulation and keep the warm air form hitting the cold surface condensation cant form. I will let you know how it works
Sklingsick, have you tried opening a few windows and vents for the moisture to escape? As mentioned above. Once we learned to do such, we do not get moisture build up under the mattresses.