Tether, the crypto company behind the most popular stablecoin, USDT has invested $50 million in sleep tech startup Eight Sleep at a valuation of $1.5 billion, 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 rather than relying entirely on cloud systems.
Eight Sleep builds sleep systems equipped with sensors that track biometric data like heart rate and temperature throughout the night. Its flagship product “Pod” adjusts mattress temperature and generates sleep insights based on real-time physiological data.
“We believe that advanced personalized AI is the perfect path to understanding and expanding human potential,” Paolo Ardoino, CEO of Tether, said in a statement.
The investment is the latest example of how Tether goes beyond stablecoins and crypto infrastructure. The company is best known for its $183 billion USDT stablecoin, which is popular as a savings and payments tool in emerging markets with limited access to US dollars. Tether reported more than $10 billion in net profits through 2025 and has increasingly funneled those profits into venture investments in 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 wearable devices and other sources while keeping the information encrypted and under the user’s control.
