The Wenzel Great Basin is a large, 18'x10', 2 room family dome tent that will sleep up to 9 people. The heavy duty polyethylene floor has welded seams for strength and waterproofing. The mesh roof improves ventilation on hot steamy nights. The polyester fly covers most of the tent and will keep you dry and protected in the worst weather. The removable room divider is easy to set up or take down for 1 or 2 rooms. 4 windows, including the doors and the all mesh roof mean that you will have more than adequate ventilation even on the hottest nights.