Crypto giant Tether, through its venture arm, has made a strategic investment in Eight Sleep at a $1.5 billion valuation to accelerate AI-driven health technology, according to a Wednesday announcement.
The deal aims to establish a long-term partnership between the two firms, with Eight Sleep planning to integrate Tether’s QVAC architecture into its products.
QVAC Health is Tether’s recently launched platform intended to consolidate fitness and wellness data from various wearables and inputs into a single encrypted environment that operates without reliance on third-party cloud services.
Tether CEO Paolo Ardoino said that advanced AI could unlock human potential by providing actionable insights into core aspects of health. He noted that Eight Sleep is positioned to lead in longevity-focused technology by building adaptive, on-device systems that help individuals optimize sleep, recovery, and overall well-being.
“We believe advanced personalized AI is the perfect pathway to understand and expand human potential,” said Ardoino.
“By helping people better understand sleep, recovery, and long-term health, Eight Sleep is laying the groundwork for a new standard in longevity-focused technology that is truly personalized, can function in any condition, is directly on-device, is resilient, and aligns with how people live,” he added.
Tether’s backing comes after Eight Sleep secured $100 million in a funding round from investors including HSG, Valor Equity Partners, Founders Fund, Y Combinator, and Formula 1 figures Charles Leclerc and Zak Brown.
The New York-based sleep tech startup produces smart mattress systems that use embedded sensors and machine learning to adjust temperature and track physiological data in real time.
The company plans to expand beyond sleep monitoring into broader health applications through the collaboration.
“Sleep was just the beginning,” said Matteo Franceschetti, co-founder and CEO of Eight Sleep. “This partnership with Tether gives us the infrastructure to take that intelligence beyond the Pod, into every aspect of personal health.”
Tether Investments, headquartered in El Salvador, allocates capital from the stablecoin issuer’s profits across sectors including artificial intelligence, energy, biotechnology, and financial services.
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