SOND, a sleep tech startup from Bose's former head of sleep, exits stealth with $7M.
Article excerpt
SOND, a sleep tech startup from Bose's former head of sleep, exits stealth with $7M. 7:00 AM PDT · May 27, 2026 Traditionally, sleep earbuds have been designed to mask outside noise and promote sleep with calming sounds. But today, a Boston-based startup called SOND is introducing a new type of earbuds designed to actively intervene to encourage better sleep. Founded by a pair of MIT grads, one who is Bose's former Head of Global Sleep, SOND emerged from stealth on Wednesday with $7 million in funding. Together with the funding, the company introduced its debut product: Dreambuds, a closed-loop, in-ear system that captures 12 physiological signals from the wearer, then acts on them in real-time to help consumers get better sleep. Its initial investment of the $7 million comes from E14 Fund (an MIT-affiliated fund), Crosslink Capital, Ubiquity Ventures, Alumni Ventures, Meach Cove Capital, and Boston Scientific co-founder, John Abele. To work, the device tracks signals like respiration, heart rate variability, cardiorespiratory coupling, sleep staging, body position, snoring, and seismocardiography (SCG, or the mechanical vibrations of the chest wall produced by the beating heart). This sensor data streams in real-time to a cloud-based AI sleep coach that then selects a sleep audio program, or generates one on demand, learning over time which ones work best for the...
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Notably, the startup was co-founded and is led by CEO Yadid Ayzenberg, who previously worked at Bose as its Head of Sleep Products, where he launched Bose's Sleepbuds 2 and ran the company's portfolio of other sleep products.
