A lesson in space planning
What exactly is space planning? There are a few fancy definitions but for simplicity sake, it is how the furnishings, electronics, plants, etc. are arranged in a space.
Who needs space planning? Everyone does if you are going to furnish a room. Many people do not have a good spatial sense and don't know what size sofa or bed will best fit in a room. Often people buy furniture that is too large for their space or they buy too much furniture for a space and don't quite understand why their room doesn't look good. In some cases, the furniture is the right scale but it simply is not arranged well within the room.
All of the problems can be avoided by hiring a designer for an hour or two. A designer can create a space plan that provides the dimensions of the furnishings as well as the layout once they are purchased. It will generally save you money and frustration because you will purchase furniture, electronics or art that is the correct scale for your space.
You can also hire a designer for a consult if you continuously bang your knee on the corner of your bed. Of course you might hear something you don't want to hear like "this king size bed is really too big for your space."