Frozen shoulder — medically known as adhesive capsulitis — causes stiffness and pain inside the shoulder joint, often making sleep especially difficult. Many people with frozen shoulder find that having the best pillow for frozen shoulder and neck pain can significantly reduce nighttime discomfort and improve sleep quality. https://zionnfwm92592.wikififfi.com/2074465/choosing_the_right_pillow_for_frozen_shoulder_a_complete_guide