There are a lot of decorating ideas for one bedroom apartment or loft that can help make the space as functional as possible. As you have one door only for entrance and exit, it is important to create it spaciously. Place a large mirror on the wall adjacent to the main door for illusion of more space. Put a coat rack right next to it and a shoe rack right below the mirror. This way, the coats, hats, and shoes will be organized. For the seating area, avoid choosing bulky furniture. Two-seater sofa bed is the best idea as it can be unfolded into a useful additional bed.