There are many activity trackers, devices and apps designed to track your sleep. Many sleep tech companies claim these solutions can help you understand your sleep, get more rest and build better sleep habits. But is sleep tracking accurate? And, importantly, can tech improve your sleep? 

The best sleep trackers include many of the best fitness trackers, like the Fitbit Charge 4 and the Honor Band 5, as well as headbands, like the Philips SmartSleep Deep Sleep Headband and smart rings, like the Oura. 

There are also other devices built solely for sleep tracking that don’t have to be worn, like the Withings Sleep Analyzer(opens in new tab), which slides under your mattress. 

The quality of our sleep can impact our daily lives and long-term health in various ways(opens in new tab). A lack of sleep can negatively impact our ability to make decisions and solve problems, our mood, and mental health. It can also increase the risk of developing chronic health problems.

Creating tech to help people better understand their sleep and even improve the length of time and quality of their sleep is a no-brainer for tech companies. The question is, can sleep trackers really improve your sleep and deliver on their promises, or are these devices all health tech hype? In this guide, we’ll look at how sleep trackers work and how they might help you to sleep better.