Are you flying or driving?
It's been kind of wet and sticky out lately, got Stan over in the gulf making trouble, and then there's 19 off in the Bahamas bringing in more rain than necessary. So make sure you got a good rain proof tent. If not, buy a tarp to toss over the top.
And you want to sleep only on a sleeping bag??? Are you out of your mind!!!
Our bedding consists of...
old sheet for the bottom, a heavier sleeping back (laid out flat), a foam matress toppers (that are about a 1/2" thick) rolls up to about the size of a sleeping bag, 1 comforter, 2 comforter, 2 or 3 sets of sheets, 1 sleeping bag - shell up, 2 sleeping bag - shell up, then our comfy jersey knit queen comforter. Then we usually use a lighter comforter to cover up with. The key to the top comforter is to kind of bunch it up, don't stretch it out.
The coolness comes from a window AC that we prop up on our tail gate, then we use a tarp to cover the front to keep the AC blowing in, and to keep it from escaping too much. and we just set the tent up with the window right next to the AC.
This is done on every trip, wether it's 1 night, 2 nights or 3 nights (which is usually our longest of stays).
Anything less comfy than that, and I think you're nuts. I don't think I could do one park on a nights rest like that. My back would be killing me. If anything at all, buy one of the mattress toppers at wal-mart, I dont think they're much more room than a sleeping bag.
... now if only I could figure out a way to bring the mattress topper we keep on our bed, which is memory foam, with egg crates that's at least 3 or 4" thick. But that doesn't roll up quite as nicely.
. We will have a tarp and ground sheet and an air mattress (the really small kind for backpacking).
