Stablecoin firm Tether has led a $50 million strategic investment round in sleep technology startup Eight Sleep, to help the company integrate artificial intelligence agents into its sleep tech products.
The latest funding round was announced on Tuesday, with Eight Sleep raising $50 million at a $1.5 billion valuation. It follows a $100 million raise last August. The firm specializes in sleep health products, primarily across bedding and supplements.
In an announcement on Tuesday, Tether expressed its strong conviction in health technology to support “longevity, performance, and disease prevention,” and will collaborate with Eight Sleep to bring artificial intelligence-based health technology products to market.
Tether has been using its capital stockpile to invest in a wide range of areas outside crypto. Its investments span the gold sector, media, biotechnology and AI. The firm has also made multiple attempts to buy 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.
Tether’s QVAC is a privacy-focused health tech service launched in December that enables users to integrate their bio-health data from multiple services or products, like smart rings, into a single platform, supported by local on-device AI to help users with data management and health insights.
Eight Sleep has stated that it plans to build a sleep-focused AI agent to support its Pod, a sleep tech product that automatically adjusts bed temperature, elevation, and sound based on factors such as heart rate, breathing, snoring, time asleep and sleep stages.



















