Did you mount the ARB in the 2nd battery location?

Where did you get those mattresses? What kind of foam? Need to source/make one for my Ovrlnd.Got my mattress in the other day. Went with a firm foam and marine vinyl. Vinyl is similar in color to my interior. Total bed size is 65x80 3” thick mattress. I do have extra bedding height built into the cab over and highly recommend the extra room. I should be able to leave sleeping bags up there when traveling.View attachment 556197View attachment 556198View attachment 556199View attachment 556200 Could have gone to 69” wide on the mattress but wanted a couple inches on each side wiggle room. Last pic shows the amount of room with the bed extended in a 5.5 foot bed. About 29” or so.
you have an IG? love your build, I have an OVRLND camper on order and just looking for owners to get ideas for my buid.