10 Best Sleep Trackers 2025 in the United States

The Apple Watch Series 10 (GPS 46mm) offers a compelling sleep tracking experience wrapped in a versatile smartwatch. Its accuracy benefits from advanced sensors like the electrical heart sensor and third-generation optical heart sensor, which help provide detailed sleep data including sleep stages and potential signs of sleep apnea. The watch's lightweight and thinner design makes it comfortable enough to wear overnight without much disturbance. Battery life supports about 18 hours of normal use, which means you’ll typically need to charge it daily; however, fast charging can rapidly top up the battery, including a quick charge feature that can support a full night of sleep tracking with just 8 minutes of charging.

Data syncing is seamless but requires an iPhone (Xs or later) running iOS 18 or higher, so compatibility is limited to Apple ecosystem users. The watch also syncs with the Health app for comprehensive insights and supports notifications and other smart features right from your wrist. Additional health features like ECG, cycle tracking, and heart rate notifications add value beyond sleep tracking. Its ease of use is enhanced by a bright, always-on Retina display and intuitive controls like the digital crown and Siri integration.

The relatively short all-day battery life means you’ll need to plan charging times carefully, especially if you want overnight sleep tracking plus daytime use. Also, it’s a higher-cost option best suited for those who want an all-in-one health and fitness companion rather than a simple dedicated sleep tracker. For users deeply invested in the Apple ecosystem seeking reliable sleep insights alongside fitness and safety features, the Series 10 presents a strong choice.

The Apple Watch SE (2nd Gen) offers a solid entry into sleep tracking, especially if you're already using Apple devices. Its sleep tracking benefits from the watch’s accurate sensors and heart rate monitoring, giving useful insights into your sleep patterns and overall health. The 40mm size with a lightweight design helps with comfort overnight, though some users may find wearing a watch while sleeping less comfortable compared to simpler sleep-specific trackers. Battery life is decent but typically lasts around 18 hours, meaning you'll likely need to charge it daily, which can interrupt continuous sleep tracking unless you charge strategically during the day.

One of its biggest strengths is seamless syncing with iPhones and integration into Apple's health ecosystem, making data access and interpretation straightforward. Additional features like crash detection, heart rate alerts, and fitness tracking add valuable health and safety benefits beyond just sleep monitoring. The watch’s touchscreen and watchOS interface are intuitive, making setup and daily use user-friendly even for those new to smartwatches.

If your primary goal is dedicated sleep tracking with minimal fuss and longer battery life, a specialized sleep tracker might be more convenient. The Apple Watch SE (2nd Gen) is well suited for users wanting an all-around health and connectivity device with good sleep tracking as part of a broader feature set, especially if you value Apple’s ecosystem compatibility.