NEMO's Roamer self-inflating mattress is the plushest, most comfortable go-anywhere mattress offering over 4" of support that packs to half the size of the competition. An expansive size, open-cell foam, and luxury fabrics provide a premium sleep experience with go-anywhere durability.
Being 6'9" and over 300lbs it was tough to find a something that would work. RTTs where nice but to much hassle with going up and down the ladder at night for my wife and space was cramped at best.
We purchased a tent and are using Teton XXL Cots with their pad, and bags. Rated for up to 600lbs and I can lay down and be comfortable since they are basically 7' long. With their bag and pad they are very comfortable more so than anything I had in a RTT.
Another for MegaMat! I bought it a few years ago for myself as I was the only one going out. I think Ive used it once since. Now my daughter comes with me and I use my Thermarest Trail Pro. Its OK but not as comfy as the Megamat. My wife came camping with us for the first time and she loved it too. Another one may be in my future. Its big, but way worth it. Unless you are backpacking, the extra money is worth the good sleep.
If you are on a budget, I would also recommend the Trail Pro. If the Megamat is a 10/10, the Trail Pro is a 8/10. Not quite as comfy and a little thinner, but I still sleep pretty good on it