Amazon has the Golabs 2-Person Truck Bed Tent (5 - 6 Ft Beds,  Blue) on sale for $49 with free shipping. Uses 210D Oxford fabric with a PU2000mm waterproof coating. Includes 2 side mesh windows and a rear vent. 5 minutes setup. 

• Works with popular truck models like F150, Ram, Silverado, Tundra, Sierra, and Titan. Includes 2 side mesh windows and a rear vent.