Frozen shoulder — medically known as adhesive capsulitis — causes stiffness and pain within the shoulder joint, often making sleep especially difficult. Many people with frozen shoulder see that having the shoulder pain relief pillow can significantly reduce nighttime discomfort and improve sleep quality. https://jeffreymeuk71482.plpwiki.com/7354027/choosing_the_right_pillow_for_frozen_shoulder_a_complete_guide