Welltory Adds Sleep Analysis Feature for Apple Watch Users

The wellness app isn’t sleeping on sleep performance — a new feature bridges heart rate, movement, and scientific insights

Wellness app Welltory has launched a new, science-backed sleep analysis feature for its users, designed to assess sleep patterns and provide actionable insights.

The feature is initially available for Apple Watch users, with plans to expand access soon.

Welltory CEO and founder Jane Smorodnikova explains that during the development of the wellness app’s sleep analysis feature, scientists identified a problem: wearables often fail to accurately track sleep stages.

“Further research confirmed that polysomnography (PSG), the gold standard, is impractical for daily use,” Smorodnikova said. “Frustrated by this, we developed an algorithm that digs deep into Apple Watch data to demystify what happens to your body while you sleep.” 

Welltory uses Sleep Wave, a personalized heart rate pattern that tracks nightly recovery and utilizes an algorithm that gauges sleep patterns against individual baselines and the ideal heart rate. Using a helpful visual, app users can see their heartbeat’s wave to understand where the day’s stress has subsided, promoting deeper rest. It also provides insight into how stress levels and daily activities can influence personal sleep needs and helps users understand patterns in sudden nighttime awakenings. 

“It bridges heart rate, movement, and scientific insights,” Smorodnikova continued. “It doesn’t match the precision of a sleep lab, but it delivers unprecedentedly deep results, and we continuously refine it for even greater accuracy.”

In addition to Welltory, sleep health has become an emerging wellness area, which has fueled the development of products from high-tech mattresses from Eight Sleep to a new AI-driven platform from SleepScore Labs that allows health and wellness brands to optimize sleep performance for their customers.