Act as a product designer with 10+ years of experience in creating innovative IoT devices. Design a sleek, futuristic AI-based sleep tracker and smart alarm clock tailored for [modern urban professionals] aged [25-40]. Incorporate features such as [advanced sleep stage analysis], [personalized wake-up recommendations], and [integration with smart home systems]. Focus on aesthetic appeal, using [minimalist design] with a touch of [luxurious materials] like brushed aluminum or matte glass. Ensure the interface is intuitive, with a [customizable OLED display] that syncs seamlessly with smartphones. Highlight how the device improves sleep quality and enhances daily productivity. Provide detailed renderings and a brief user scenario to showcase its functionality.