Eight Sleep Study Reveals 14% Increase in Heart Rate Variability Through Core Temperature Regulation

Eight Sleep, a company specializing in smart sleep technology, has announced findings from a recent study demonstrating significant improvements in physiological recovery metrics. The study, involving 46 participants, utilized advanced core body temperature tracking to monitor the benefits of the company's temperature-regulating sleep system over a 24-hour period.

Matteo Franceschetti, CEO of Eight Sleep, highlighted the sophisticated methodology, stating in a recent post, > "We had 46 people swallow a special temperature pill to track their core temp over 24 hours." This ingestible device, classified as a Class II medical device, is commonly employed in sports medicine, elite athlete monitoring, and clinical settings for its precision in measuring internal body temperature.

The study aimed to objectively quantify the impact of Eight Sleep's technology, which works by precisely lowering core body temperature during sleep. According to the findings, participants experienced a notable 4% decrease in resting heart rate (RHR) and a substantial 14% increase in heart rate variability (HRV). These metrics are crucial indicators of cardiovascular health and the body's recovery capacity.

Optimizing core body temperature during sleep is a key function of Eight Sleep's products, which include smart mattress covers and mattresses. The company asserts that by creating an ideal thermal environment, its system facilitates deeper sleep stages and enhances the body's natural restorative processes. The observed improvements in HRV and RHR align with the company's long-standing claims regarding its technology's ability to boost recovery and overall well-being.

The use of a Class II medical device for temperature tracking underscores the rigorous approach taken by Eight Sleep to validate its product's efficacy. Such devices provide continuous, non-invasive monitoring, offering objective data that supports the physiological benefits attributed to regulated sleep temperatures in both athletic and general health contexts. The results suggest a tangible impact on user health and recovery.