Denny's typically offers free refills on beverages such as coffee, tea, and soft drinks. This policy is intended to enhance the customer dining experience by providing value and convenience. Guests are welcome to request refills whenever they would like, and staff are generally attentive to beverage needs. However, it is important to note that specific policies may vary by location, as each restaurant may operate slightly differently based on local management decisions. Guests are encouraged to inquire with their server about any particular refill policies at their location to ensure they receive the most accurate information. For precise details or any updates regarding Denny's beverage policies, checking the official website could be helpful.