How does Sahha derive a sleep score without a wearable?

In today's health-conscious world, sleep plays a critical role in our overall well-being. A good night’s sleep is essential for cognitive function, emotional regulation, and physical health. But what if you could monitor and improve your sleep quality without needing to wear a device on your wrist every night? At Sahha, we’ve developed a way to derive a sleep score without relying on wearables—yet we also provide enhanced insights when wearables are available. Here’s how we do it.

Understanding Sleep Metrics Without a Wearable

Traditionally, sleep tracking has relied on wearables like smartwatches or fitness bands that monitor physical activity and heart rate throughout the night. However, these devices may not be accessible to everyone and can be uncomfortable to wear while sleeping.

Sahha uses data derived from smartphone sensors and user interactions. Here’s a closer look at the factors we analyze even without wearables:

Total Sleep Time: This measures the total duration of sleep, calculated through passive data collection on phone usage. For instance, long periods of inactivity during typical sleep hours suggest that the user is sleeping. This approach can effectively estimate when a user goes to bed and wakes up, even without physical movement data from a wearable.
Sleep Regularity: Consistency is key to good sleep health. By evaluating the regularity of your sleep and wake times using patterns from your phone’s sensors, we can determine how consistent your sleep schedule is. A consistent routine generally leads to better sleep quality.
Sleep Timing: Aligning your sleep schedule with your circadian rhythm is crucial for quality sleep. We assess how well your sleep routine matches natural patterns, like the timing of sunrise and sunset, using data from your phone.
Sleep Debt: This factor looks at the cumulative loss of sleep over consecutive nights. For example, missing two hours of sleep each night can accumulate, leading to a significant sleep deficit. Over time, even small amounts of sleep debt can significantly impact mood, productivity, and overall well-being, making it a key factor in assessing and improving long-term health.

Enhanced Insights with Wearables

While our smartphone-based approach is powerful on its own, Sahha provides even deeper insights when wearables are integrated. Wearables allow us to track additional factors that contribute to a more comprehensive understanding of your sleep health:

Sleep Continuity: This measures the number of awakenings, and the time spent awake during the night. With a wearable, we can more accurately track disruptions in your sleep, providing a clearer picture of your sleep quality.
Mental Recovery: Wearables help us gauge how well your sleep is supporting cognitive restoration. This includes monitoring REM sleep duration, which plays a key role in processing emotions, consolidating memories, and restoring cognitive functions.
Physical Recovery: This focuses on how well your sleep supports physical recovery by analyzing data like deep sleep duration. Deep sleep is when your body undergoes the most significant physical restoration, which is essential for muscle repair, tissue growth, and overall physical rejuvenation.

Maximizing Utility Without a Wearable

Even without a wearable, Sahha provides significant utility by offering insights into your sleep patterns and helping you make informed decisions to improve your sleep health. Our smartphone-based approach ensures that you can still track essential sleep metrics and receive actionable feedback to enhance your well-being.

Whether you choose to use a wearable or rely solely on your smartphone, Sahha empowers you with the tools to understand and improve your sleep quality.

Conclusion

No matter your preference, Sahha ensures that you have the insights needed to optimize your sleep health, whether through smartphone data alone or with the added depth that wearables provide.