It's a Bivy.
Why does buying a bivy seem like such a hassle? So I bought this one and I tried it one night. I woke up hot, stuffy and panting. Let's call it 'freak out mode'. This thing may be bomber and all, but it really isn't for me. I wanted a bivy for sea kayaking when there isn't a good place to put up a hammock. The only way I could see using this thing and not freaking out in the middle of the night is if the wind was blowing and you could get consistent fresh air. I think I will just use it under my MSR Zing wing, having that extra level of protection from the elements and using the bug screen to keep the mosquitos at bay. The only negative I found with the actual bivy was the fact it isn't high enough when I sleep on my side. the top pole was against my shoulder the whole night making rolling over a hassle.