For the shelfs a more basic design is rather the best here, nothing to complex or over the top will be needed as its design to just store objects when they are not needed, though this can act as a bed for added coverings to help split up the room into different sections as is the idea for the room.
As the design is meant to stay simple I have to think of ways to allow for additonal designs to be implemented this was achieved by increasing the walls and shelf thickness to give more of an idea to hang items off, I also made the spaces very wide allowing for either a large selection of different objects to be placed in their or for a container to be placed upon it and due to how these will most likely be placed at the sides it makes having to worry about the edges less of a well worry.
Lasso Incorporated 