Figo, what fun to completely redo the space! Could you post a picture of the window wall, and the wall opposite the shelves, too? That would help. What kind of look do you like best? Are you keeping the rug?

Would you consider building a closet that would hold the platform on which your mattress would be placed? The outer side of the platform could have drawers or doors to the storage units under the platform. This kind of enclosure would work better for a twin bed than for a double, but it would provide a place where the bed can be concealed during the day time. Then, if you could allow a path between the bed enclosure and sofa, you could have the sofa face the dining table, or you could place the dining table at a right angle to the end of the sofa.

Hi Stones provide a better finish than tiles.

Introducing a rotatable dining table streamlines serving and maximizes space utilization. With its versatile design, diners can access multiple dishes without constant movement. Opting for a single focal light fixture above the oval or round table enhances ambiance and functionality, creating a well-lit and inviting dining area.