That Turbo Tent Pine Deluxe that @Mgyver posted looks awesome for truck camping due to it's weight. Looking into those now as I actually don't have a truck camping ground tent anymore. I've been so spoiled with the Flippac camper on my Tacoma that I haven't need a ground tent in years.
Another option is the 30 second tent from OzTent. They're pretty expensive, and I'm sure you can get a Chinese knock for a cheaper price, but the design is awesome. Oztent Range [MENTION=73515]ajonesnv[/MENTION] has a 30 Second styled tent and it sets up very quick and withstands the elements well. They have a few sizes too and I think their biggest is 8-1/2" x 8-1/2". The upside of my Turbo Tent is that you can get it in a bigger size (8x8 or 10x10) and all the walls are mostly vertical which accommodates my bunk cots well, but the 30 sec tent sets up much faster. If I was going to be sleeping on an air mattress or sleeping pads, or single cots then I would very seriously consider the 30 sec tent.
I like REI tents. Good quality, they can be found for cheap when on sale, and a lifetime warranty if you break a zipper or something. And there are a zillion choices.



Something different-
The ARB add a room attaches to your awning. Inexpensive and well made. This has it's own roof, floor and 4 walls- 2 doors, one of which lines up with the rear passenger door. Windows on the other sides with their own awnings and screens, vent windows and power port holes.
I sleep in the truck and use this room to get out of the weather, but I have slept in the room itself...
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Jeff, that does look nice. I have to ask, how does it attach to the end of the awning? I have a Fiamma awning and they use a type of captive cord - maybe 8 to 10 mm in diameter - that slides into a channel along the bottom edge of the awning end bar. Works fairly well but they don't really offer anything like what you've shown in your pictures.

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. This allows me to have a sleeping quarters and a place to relax, do post-processing, etc.