Small House Folding Interior - Japanese designers Atelier OPA created a unique set of products, which are perfect for small spaces. Includes a mobile home office, a small kitchen, and a guest room (pictured). When not in use, fold your furniture away.
I'm thinking something akin to this for the loft stairs, except with another loft on the other side and the second set of stairs meeting in the middle. "A 355 square feet tiny house on wheels in Felton, California. Designed by Molecule Tiny Homes.