weird tent

Haha, it is certainly strange looking but I don't think it would be any more effective at keeping out insects than a normal tent (especially those that can fly). Also it looks like it would be hard to sleep in that tent because it isn't very wide/long and you wouldn't be able to stretch out fully, especially if you are particularly tall like I am.

Also, do you know how it stays in that position? There must be some kind of rigid support to keep it from sagging down like you would expect it to.

 

Looks like some kind of cocoon bubble. It does not even look like it would be comfortable. I can easily see a bear batting that around for fun. Maybe it is designed for children who would think of it as a cool tent or hiding place. Any adult would no doubt wake up with a aching back from being curled in a ball all night long.
Seems like it would sag down just like a net would in that position. I would not even attempt it.

 

This seems to be what most people think.

I do sometimes hang my packs like that from the trees - high up, to keep them away from the animals.