Reddit reviews Guide Gear Compact Truck Tent

http://www.amazon.com/gp/aw/d/B003C53BGA/ref=redir_mdp_mobile?ref_=pe_385040_30332200_TE_item

$80! Can't beat it.

https://www.amazon.com/Guide-Gear-Compact-Truck-Tent/dp/B003C53BGA

https://www.amazon.com/gp/aw/d/B003C53BGA/ref=yo_ii_img?ie=UTF8&psc=1

I've slept in mine with an over sized (as in meant for an 8ft bed) tent and a regular queen size air mattress. This would be the correct size for the tent i used, but any 6ft will work fine.

It's doable, you'll just end up taking the whole bed plus the length of the tailgate.
As far as weather goes the tent will be about the same as any other ground tent. If the weather gets bad, just turn your pickup into the wind.

It's a Guide Gear tent. They're meant for a 'larger' compact truck but they fit my 5ft bed pretty well. Only weird area is the entrance which sits a tiny bit too long. You can let it overhang the tailgate a little (pictured above) or prop the edge up on the tailgate letting the top lean forward giving a little vestibule.

The seams at the roof aren't watertight and you can see a bit of daylight through them, but it comes with a rain fly that's pretty easy to buckle on that covers all of that. All in all, a great tent for that price and we haven't had any issues with it.

Amazon Link

Guide Gear Compact Truck Tent https://www.amazon.com/dp/B003C53BGA/ref=cm_sw_r_cp_api_i_Y-BoDbERHWGDG