As a reminder for Carnage attendees staying at the Killington Grand for the weekend, standard checkout time is 11:00am. If you are curious about the possibility of a later checkout, inquire with the front desk. Later checkout times usually depend on upcoming reservations, so it may vary from room to room.
Other places to stay on the mountain, including the various condominiums, may have different policies, and you should check directly with them about their checkout policies.