Different ways to sleep

I have a queen bed which is completely unnecessary for me. Over the holidays I felt compelled to have a camp out in the living room which I think stems from my love of camping and being close to the earth.

I know people sleep on different types of mattresses in different shapes and sizes, some are temporary mats. I am open to anything. Does anyone have any resources for how people sleep across the world? I'm interested in changing from my American bed to something more minimalist.