Yes, you are generally permitted to walk around your hotel at night, but your access is usually restricted to common public areas like the lobby, 24-hour business centers, or hallways leading to your room. Most modern hotels utilize a keycard system that locks exterior doors, elevators, and fitness centers after a certain hour (often 10:00 PM or 11:00 PM) for guest safety. While you can wander within the secure perimeter of the building, you should be mindful of noise levels to avoid disturbing other guests who are sleeping. It is also wise to check if the hotel has a "security lockdown" policy where certain wings or floors are restricted to staff only late at night. If you are staying in a large resort, the grounds may be patrolled by security personnel who might ask to see your room key to verify you are a guest. For safety, avoid poorly lit exterior areas or emergency stairwells unless there is an actual emergency. If you need anything from the lobby or a vending machine in the middle of the night, most guests find it helpful to carry their phone and room key at all times to ensure they don't get locked out of their specific floor or wing.