How Did Our Ancestors Sleep Before the Creation of Beds?

i was wonder how did our ancestors sleep before the creation of beds? You know, whenever we look at an invention, we like to ask what came before. And there's a lot we don't know, but what we do know is kind of interesting. We were, you know, we're descended from largely arboreal species, and this probably included sleep. For some evidence of this, we can look to the sleeping habits of our nearest relatives in the animal world, which would be chimpanzees. They really like something called ugondon ironwood.