We've historically taken basic closed cell foam pads along on camping trips, double up on them and you can be (relatively) comfortable. Pros are low cost and durability, cons are bulkiness and lower comfort compared to air mattresses and self-inflating pads. A good self-inflating pad will be more comfortable and less bulky but they can be significantly more expensive and less durable. Last year Mill's Fleet Farm here had some lightweight military surplus self-inflating pads from Therm-a-rest for $20 each and I bought a few for myself and my brother and dad. It was a great deal, they're on the thin side so again I'll double up on them but you can pack two in the space that one closed cell foam pad takes. Put one of those Therm-a-rests on a cot and you will be sleeping very well. Speaking of which... unless you're going to be camping in cold weather, cots could be another option. Nice advantage to those is keeping yourself dry even if it is pounding rain outside and/or something goes awry with your tent setup. My bachelor party is this weekend and my brother got a houseboat on Birch Lake, which is a 7000 acre body of water in the Superior National Forest not far from where we go in the Boundary Waters. I'm planning on spending a lot of time dragging big ass swimbaits and putting suckers on harnesses and bobbers when we're anchored/docked. Let's see if there's any big pike in there.