I don't know how big your mattress is, but if it's a one person camping type of mattress, you get a cot or sunbathing lounge chair $60-70 at Walmart) and put the mattress on top of it. That will get you off the cold floor and should improve things.
Nevermind....I think I found my answer, so I should be okay....
"Filling the ribs is not necessary or even a good idea. The foam will support many thousands of pounds and the spaces let moisture (if any) escape. I am surprised you didn’t find this?? EXP would work but has no reflective layer...
I'm worried I might've messed up my floor insulation. I didn't realize that a vapour barrier is bad. I cut narrow strips of 1/2" XPS and put the strips in between the ribs of the floor. The XPS strips aren't flush with the ribs and there's a gap. I then put double foil facing EPS silverBoard...
Thanks Trebor! That really is cheap. Funny how these sites that compare or review the different types of batteries for camper vans never send you to any links for FLAs. As for the maintenance, I figure I can just have monthly reminders on my phone calendar so i don't forget. Good to hear...
I've been reading up on deep cycle lead acid batteries and might consider getting a flooded/wet cell instead of an AGM battery, as they're supposed to be cheaper. I know there's more maintenance, but I might be willing to put with it. However, I'm having trouble googling for a 100 Ah FLA. The...