Of course, you can rest on a cot or in a haystack, if you really want exotic. And you can original and comfortable, as in this bed. Only probably, this design is called somehow differently. Perhaps a rocking bed with a roof.
In other matters, the essence is not in the name. The main thing is that the idea is original, it is only interesting how to relax in such a structure.
You can try to do it. For example, try to twist a metal frame with a vine, or make it completely wooden. At the expense of how convenient this is, it’s not known for sure, but it’s for sure that everyone will be surprised and everyone will want to try it.