It goes without saying that a sofa is essential in the living room. Providing you, your family, friends, and guests with a comfy spot to chill, it also serves as a centerpiece, adding charm and style to the space. As you'll likely know, sofas come in all shapes and sizes, from long and thin modernist designs to uber-plush velvet classics. In terms of criteria, you might prioritize comfort over style, or vice versa. Perhaps, too, darker colors might be preferable for those of you with unruly pets or kids.