USABLE WITH DUVET COVER: Easy to use and add duvet cover. Duvet covers are light weight, protect the weighted blanket and are machine washable. IMPROVED SLEEP QUALITY: People diagnosed with ADHD, ADD, PTSD, Autism, Sensory Disorder, Sleep Disorders, Emotional Trauma and similar issues can use the Weighted Blanket to feel a sense of calmness and sleep stress-free.