Why is there a demand for Bunk Beds & spiral staircases

Spiral stairs are so much handier in smaller spaces, and if you want to have the stairs in a fixed place through all floors you can just stack them on top of eachother while with regular stairs you have to be a lot more creative with the placement, plus they can be elegant. Definitely very useful. Bunk beds are pbviously also good for cramped spaces. We don't just play with mansions... so obviously we need these things, and more space savers like ladders and multi use furniture is much needed as well.