I fear I need to make certain I give a disclaimer. I am a lefty crocheter. I don't follow patterns well because many don't translate well for lefties. Combine this with a less-than-rule-following personality and get a less structured pattern. This will bother some, and I apologize in advance for this.
Why a weighted blanket? Weighted blankets have been helpful for many different types of people. They can help people sleep better (the reason I attempted this pattern for my young guy) and some weighted items help people sit still and calm down. Some who benefit from weighted blankets include: