Tether, the company behind the USDT stablecoin, has invested $50 million in sleep technology startup Eight Sleep. The deal values Eight Sleep at $1.5 billion.
Eight Sleep develops sensor-equipped sleep systems that track biometrics and adjust mattress temperature. The funding will support the development of new AI health features using Tether's QVAC architecture, designed for device-level data processing.
Paolo Ardoino, CEO of Tether, stated, "We believe advanced personalized AI is the perfect pathway to understand and expand human potential." This investment marks a strategic move for Tether beyond its core cryptocurrency operations into venture investments across health technology and artificial intelligence.
Tether, known for its $183 billion USDT stablecoin, has reported over $10 billion in net profits for 2025 and is channeling these earnings into diverse ventures. This follows Tether's recent launch of QVAC Health, a platform for encrypted, user-controlled personal health data aggregation.
