I ended up going with a custom
memory foam truck mattress from MattressInsider.com. It cost me around $290 all together and it feels more comfortable then the mattress I have at home. The mattress came compressed and rolled in a box and it was pretty easy to setup. I also ordered their
truck mattress encasement to protect it from spills, stains, bugs, etc. The protector took a little longer than I hoped for delivery, but then again...it was custom.