Hyatt Residence Club typically establishes policies regarding additional guests that may involve fees, which can vary based on the specific location and the terms of the reservation. In many cases, the standard policy permits a certain number of guests per unit at no extra charge, while fees may apply for any guests exceeding that limit. These fees can cover things like extra linens, amenities, or additional housekeeping services. It is essential for owners and guests to check the specific policies associated with their reservation, as they might differ by property or season. For the most accurate and up-to-date information, including potential fees for additional guests, it may be helpful to refer to the official Hyatt Residence Club website, where current guidelines and policies are often outlined.