Situation: I am sitting on the couch with no pillow and the cabinet on the other side of the room is right in front of me.
Alternative situations: I am sitting on the right side of the couch on the edge texting my friend on my phone looking downwards. I am facing away from the couch on right side performing pushups in front of it.
Question: What do I need to lower all the way to block out the glare coming from the right side of the room?