So something like this, where the bed is now - but with the headboard turned into a storage shelf (your dad could do that) so when the bed folds down, the pretty headboard you are using now aligns with the top of the mattress.
If you are actually searching for a special technique to build several of your preferred points, furniture, hardwood, youll would like to look at this various spin on typical woodworking jobs. - My Woodworking Shed
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.
small bedroom decorating ideas original Murphy bed design
Live in a tiny house? Build a DIY built-in roll-out bed