I really wanted to love this, but sadly, the bend in the midline of the air mattress is a deal breaker for me. It defeats the main reason I bought this to replace my camping hammock--a flat surface to sleep on. As soon as I lie down, it bends in the middle and my back loses support. And yes, it is fully inflated. I've seen the gizmos others have rigged to support the underside along the center, but at this price point one shouldn't need to be doing extra rigging. I'm sure Haven is fully aware of...