Just warm this large heart pillow in the microwave and place over your chest for a wonderfully relaxed and deep sleep. Originally designed for rotator cuff/shoulder injury, it’s weight and deep heat therapy provides relief for many other areas as well. Conforms to your body. Heat lasts approximately 45-60 minutes. Can also be chilled in the freezer for cold therapy. Flax seed fill w/crushed herbs and spices. 15 X 15 inches. Ruby Red cotton removable, washable cover.