A tent assembly defining a tent portion for attachment to the bed of a pickup truck is disclosed. The tent topper has a plurality of openings therein at pre-selected locations which permit the tent to engage a plurality of adjustable pins. These pins, with their associated adjustment knobs, provide a means for stretching or making taut the tent to make the tent topper. Also, the tent portion is attached and fixed to a V-shaped roof support. Furthermore, the tent topper may be easily removed from the truck, disassembled, and stored in, for example, a suitcase type container in the truck cab behind the seat, as many truck owners do not like to permanently affix camper type shells on their truck beds.