With it being Iowa in July, you’d be amazed at how cool, and clammy the middle of the night can get.
I’ve slept on the tent floor, used closed-cell pads, and air mattresses. A few years ago, on this forum, someone raved about their Go-Kot. I checked them out, ordered one, and have been really happy with the product. It’s lightweight, sets up in about 60 seconds, keeps you off the ground, really sturdy, and is American made. ABC World News did a “Made in America” feature about the company a few months ago. It might be more of a premium product for some, but it definitely has held up the past few years for me, and with 36 RAGBRAI’s under my belt, I’m sleeping much better in the tent.
Enjoy your RAGBRAI.