That does look fun, and beats heck out of a tent.
I got a snake in my tent once in Boy Scouts, and while it was only a big garter snake, the fact it got down in my sleeping bag with me before discovery, made me distrust tents forever after.
I had felt a cold zipper before, but when I reached down to touch it, it foking wiggled. Screaming followed.
Many years later backpacking in Sequoia National Park, it was black bears. They didn't get in the tent, but the fact you could could hear them across a big meadow made sleep difficult.
In summary, screw tents.
