VEVOR Rooftop Tent Hard Shell, Naturnest Rooftop Tent Hardshell for 2-3 Person, Folding Hard Shell Roof Top Tent with Telescopic Ladder Mattress PVC Cover Bag, Waterproof for Jeep SUV Van Pickup Truck

What’s the difference between the small one and the large one because in the description it says the same thing.

Im looking for the setup inside dimensions. The actual sleeping area. The pictures show the messurements from awning to awning which is larger than the inside dimensions. Hope this makes sense. I'd be looking at the triangle and the latger foldable style.