To be honest, our household doesn't have many overnight guests, because most of our friends live nearby. However, once in a while, we do have overseas guests/family stay with us, and of course we love to prepare for those once a year special occasions. Again, space is precious in a city dwelling , just because we live in a more compact space doesn't mean we can't live happily and fulfilled. You may ask, why not use an air mattress? Personally, I find it less comfortable and more cumbersome to inflate and deflate each day. Besides the squeaky noise air mattresses make every time one turns, they are also made out of plastic. That's why I ventured out to discover other more eye pleasing and physically comfortable alternatives. I hope the choices I picked here will inspire you for your design decisions in the future.