I had never heard of weighted blankets before - apparently some blankets are made with seeds or other weights to make them heavier to help with restless sleeping, but are not typically intended for infants. This daycare used a weighted blanket (almost 5 pound blanket) on a infant and he stopped breathing after rolling onto his stomach.

Just a heads up to not use weighted blankets on babies

http://www.stltoday.com/news/local/metro/infant-death-at-webster-groves-child-care-raises-concerns-about/article_922e0433-8931-5265-9d95-0aa1b5cd7faa.html