Chair headrests are ergonomic accessories that attach to the top of a chair or are integrated into the chair's design to provide support for the user's head and neck. They are typically adjustable and can be moved up or down to accommodate users of different heights or tilted forward or backward to provide the optimal level of support. Chair headrests promote good posture, reduce tension and strain in the neck and shoulders, and prevent muscle fatigue and discomfort, especially during long periods of sitting. They are commonly found on high-end office chairs and executive chairs, but can also be purchased separately and added to existing chairs. Chair headrests come in various shapes, sizes, and materials, such as leather, mesh, or fabric, and can enhance the overall comfort and aesthetics of the chair.