Benefits of Weighted Worry Monster: Weighted stuffed animals help with anxiety and overall mental wellness. They create a “hug like” effect that releases soothing brain chemicals. They help to calm the nervous system, slow your breath, and decrease heart rate; leading to relief! In addition to anxiety, weighted stuffed animals have been shown to help in times of grief, depression, and in individuals that struggle with ADHD. All Worry Monsters are handmade with premium chenille-like yarn and premium fiber filling. This super cozy yarn is 100% Polyester. Given Worry Monsters are handmade, you may notice minor variation in size or shape. 100% Satisfation Gurantee. If you are unhappy when you receive your Worry Monster, please let me know and you will receive a return label and 100% refund.