The Thin Line Between Optimizing and Overthinking Sleep

World Sleep Day, celebrated annually on the last Friday before March equinox, is a reminder of how essential good sleep is for overall health. This year’s theme "Sleep Well, Live Better" highlights the many benefits of consistently getting enough high quality sleep, which supports brain function and the immune system, enhances the mood and even improves heart health. In recent years, growing awareness of sleep’s importance has encouraged many people to take their rest more seriously - often with the help of digital tools that promise to track and improve sleep habits.

As our chart, based on survey data from the American Academy of Sleep Medicine (AASM), shows, nearly half of Americans now track their sleep in some way, most commonly using smartphone apps or smartwatches. For many users, the data can be helpful: more than half say they have changed their behavior based on sleep tracking results. However, experts warn that the rise of sleep tracking also has a downside. Focusing too much on sleep metrics can lead people to overanalyze their nightly results and become anxious about achieving "perfect" sleep scores. This phenomenon, also referred to as sleep anxiety or orthosomnia, can ironically make sleep problems worse, as stress and pressure themselves are known enemies of a good night’s rest.

"Sleep trackers can be valuable tools for raising awareness about sleep health and motivating positive changes in sleep habits," Dr. Shalini Paruthi, spokesperson of the American Academy of Sleep Medicine says. "However, it’s important that tracking enhances sleep and doesn’t cause more stress about it. If you find yourself lying awake worrying about your sleep duration or quality, it may be time to step back and consult with a health care professional about your concerns."