Polyester Duvet Cover With Extra Long Zipper for Easy Washing This DUVET COVER (ONLY) for weighted blankets is made from soft, cool & breathable polyester to cover the cotton weighted blanket. NATURAL SLEEP THERAPY: Deep Touch Pressure Stimulation, the science behind weighted blankets, induces sense of comfort and relaxation which benefits people with Sensory , Restless Leg Syndrome, chronic fatigue, and many others. It is recommended to use a weighted blanket in order to simulate the feeling of being hugged, relaxing the nervous system resulting in improved mood and better sleep. To keep your weighted blanket clean, it is recommended to switch duvet covers and wash often. This minky duvet cover has an extra long zipper for easy removal for washing. A THOUGHTFUL GIFT for your family and friends who need restful sleep. Perfect-sized for adults up to 6’6 tall.