Sherpa Fleece Weighted Blanket Gravity Sensory Sleep Therapy Anxiety Soft Throw. It is a wonderful sensory blanket for adults and children to help them relax and feel at ease. The weighted inner layer is made of 100% high quality cotton and the weighted filling is durable,hypoallergenic, odourless and non-toxic, these sand-size pellets are dense to add weight and soft to provide a nice texture to the weighted blanket.