Tether, the crypto company behind the most popular stablecoin USDT has invested $50 million in sleep technology startup Eight Sleep at a $1.5 billion valuation, according to a Wednesday press release and data from Crunchbase.
With the funding, Eight Sleep plans to develop new AI health features using Tether’s QVAC architecture, a computing framework designed to process data at the device level instead of relying entirely on cloud systems.
Eight Sleep builds sensor-equipped sleep systems that track biometrics such as heart rate and temperature throughout the night. Its flagship “Pod” product adjusts mattress temperature and generates sleep insights based on real-time physiological data.
“We believe that advanced personal artificial intelligence is the perfect path to understanding and expanding human potential,” said Paolo Ardoino, CEO of Tether, in a statement.
The investment is the latest example of Tether pushing beyond stablecoins and crypto infrastructure. The firm is best known for its $183 billion USDT stablecoin, which is popular as a savings and payment tool across emerging markets with limited access to US dollars. Tether reported more than $10 billion in net profits through 2025 and has increasingly channeled those earnings into venture investments across energy, payments, artificial intelligence and health technology.
The deal follows Tether’s recent launch of QVAC Health, a platform that aggregates personal health data from wearables and other sources while keeping the information encrypted and under the user’s control.
