Underpads, also known as bed pads or chux, are absorbent sheets designed to protect surfaces from moisture and stains. They are commonly used in healthcare settings, such as hospitals and nursing homes, to keep beds and chairs clean for patients who may experience incontinence. Made from layers of absorbent material, underpads can help maintain hygiene and comfort. These products come in various sizes and absorbency levels, catering to different needs. They can also be used at home for pets or during potty training. Many underpads are disposable, while others are washable and reusable, providing flexibility for users.