Eight Sleep Secures $50M From Tether, Reaching $1.5B Valuation
In a strategic $50 million funding round led by Tether, Eight Sleep plans to enhance its AI-powered health technology using QVAC architecture integration.

The stablecoin giant Tether has spearheaded a strategic funding round worth $50 million for sleep technology company Eight Sleep, with the goal of supporting the integration of artificial intelligence agents into the startup's sleep technology offerings.
On Tuesday, the funding announcement revealed that Eight Sleep successfully secured $50 million, achieving a valuation of $1.5 billion. This new capital injection comes after the company previously raised $100 million in August. Eight Sleep's core business focuses on sleep wellness products, with particular emphasis on bedding solutions and nutritional supplements.
Through a statement released on Tuesday, Tether revealed its firm belief in health technology as a crucial tool for advancing "longevity, performance, and disease prevention," announcing plans to work alongside Eight Sleep in bringing AI-powered health technology solutions to consumers.
The stablecoin company has been actively deploying its accumulated capital reserves across diverse investment sectors beyond cryptocurrency. Its portfolio encompasses investments in the precious metals industry, media ventures, biotechnology companies, and artificial intelligence. Additionally, Tether has made several bids to acquire professional football clubs.
"Technologies that can turn continuous health data into clear, practical insights will shape the future of consumer health and wellness," Tether said.
"The investment is designed to empower Eight Sleep and establish a long-term collaboration to build advanced AI-driven health technology using, among others, Tether's QVAC architecture and leveraging QVAC's edge intelligence to enhance Eight Sleep products," it added.
The QVAC platform from Tether represents a privacy-centric health technology service that debuted in December, allowing users to consolidate their biological and health data from various services or devices, such as smart rings, into one unified platform. This platform is powered by a local, device-based AI system that assists users with managing their data and extracting health-related insights.
According to Eight Sleep's plans, the company intends to develop an AI agent specifically focused on sleep optimization, which will power its Pod product—a sophisticated sleep technology device that autonomously adjusts bedroom temperature, bed elevation, and ambient sound based on measurements including heart rate, respiratory patterns, snoring detection, total sleep duration, and sleep cycle stages.
While the Pod currently features AI functionality for monitoring sleep health metrics, Eight Sleep has indicated that the new funding will facilitate the advancement and expansion of the company's existing AI tools and technological capabilities.
"We've built the most seamless AI-powered health sensing system in the world, and this partnership with Tether gives us the infrastructure to take that intelligence beyond the Pod, into every aspect of personal health," noted Franceschetti as part of Tether's announcement.
In a post on X, Franceschetti provided additional information, revealing that Eight Sleep is currently developing a predictive agent that has been trained on more than 1 billion hours of sleep data, while simultaneously "advancing FDA filings for sleep apnea detection."
"Passive. Every night. No wires, no clinic visits," he said.