Found an incredible mattress for the truck...

[Rilloroc]

I have a classic brands cool gel 12" memory foam twin xl that I got off of amazon. Most comfortable sleep I've ever known. Only problem is I wake up looking like i'm walking away from a car crash. Literally takes 45 minutes to pull myself together after climbing out of the sleeper. Also I can't raise the bunk anymore because the thing weighs 200 lbs.