Yes, hotel staff can legally enter your room, but their right to do so is governed by specific "High-Fidelity" protocols designed to balance your privacy with the hotel's safety and maintenance obligations. While the "Do Not Disturb" (DND) sign is generally respected for standard housekeeping, it does not create a "legal fortress." Most hotels have a policy in 2026 that allows staff to enter for a "Wellness Check" if the DND sign has been on for more than 24 hours to ensure the guest is safe. Additionally, staff may enter without your permission in cases of emergency (such as a fire or water leak), suspected illegal activity, or to perform urgent repairs. Following major security incidents in recent years, many "High-Fidelity" hotel chains have updated their terms of service to explicitly state that rooms remain the property of the hotel and that management reserves the right to inspect any room at any time for safety reasons. While the staff should always knock and announce themselves, your "right to privacy" in a hotel is a contractual privilege rather than an absolute constitutional right, as the hotel remains legally liable for what happens within their walls.