Envision a hotel room that combines rustic charm with contemporary elegance, set within the walls of manufacturing brick that lend a textured, historical ambiance. The room features a large, expansive window that allows for plenty of natural light, enhancing the warm, inviting atmosphere. Beside this window, prominently display a flat piece of burlap, hung neatly as a curtain on a minimalistic rod system. This burlap is completely flat, with no folds or drapes, showcasing its natural texture and color as an integral part of the room's design. The burlap is intended to be a focal feature, ideal for customization or branding, providing a perfect canvas against the rustic backdrop of brick. Its placement should be strategic, covering a significant portion of the window yet arranged in such a way that it can be fully appreciated for its simplicity and potential as a medium for visual expression. Furnish the room with elements that complement this blend of old and new--such as a modern, sleek bed frame, minimalist décor, and subtle touches of luxury that do not detract from the focal point of the burlap. The overall design should remain clean and understated, with the burlap and the brick walls as the key visual elements. This setting should clearly convey the hotel's dedication to combining sustainable materials with sophisticated design, capturing the essence of a boutique hotel room that skillfully balances historical depth with modern aesthetics. The flat burlap curtain becomes not just a part of the room's function for privacy or light control but a central piece in its thematic narrative, ready to be personalized or enhanced with creative designs.