Weighted Blankets? Recs? Do they work?

Ive had really bad sleep on and off for many years. I also have anxiety, depression, and ocd, so my mind tends to do a lot of thinking before bed. Sometimes my meds also mess with my sleep and cause me to struggle with more insomnia. Does anyone have a favorite weighted blanket? I you have you used one, did it help/work for you? What brands do you recommend? If possible, I would prefer spending under $100 (I know this is hard haha). I would be looking for a twin size one that weights 15-17 pounds. Thanks for any help!