Eight Sleep, a New York-based sleep fitness company, announced it has raised $100 million in Series D funding to advance its technology and global expansion. The round was led by HSG, with participation from investors including Valor Equity Partners, Founders Fund, Y Combinator, Khosla Ventures, SoftBank, and notable individuals such as Ferrari F1 driver Charles Leclerc, McLaren Racing CEO Zak Brown, and actor Kevin Hart.

The fresh capital brings Eight Sleep’s total funding to more than $260 million, according to Crunchbase. The company did not disclose its valuation, though its last raise — an $86 million Series C in 2021 — valued it at approximately $500 million.

“We’re focused on growth, global expansion and the medical space,” said Matteo Franceschetti, CEO and co-founder of Eight Sleep. “If we execute on our AI roadmap, international launches and condition-specific interventions, unicorn status will follow naturally.”

Founded in 2014, Eight Sleep positions itself as a company blending technology, physiology, and data to improve sleep health. Its flagship product, the Pod smart mattress, uses embedded sensors to track biometric data and adjust temperature, elevation, sound, and wake-up timing in real time.

“We don’t just sell a bed,” said Alexandra Zatarain, co-founder and VP of marketing. She added that the Pod also passively monitors health metrics with clinical-grade accuracy, without requiring wearables.

The Pod’s intelligence also comes from a smart bed cover with features like automatic temperature adjustment.

One could say the company was ahead of its time — in 2018, it launched an AI-powered sleep coach that provides personalized insights such as: “Last night, you slept 40 minutes less than your average this month” or “This week, your REM sleep is lower than average. Try going to bed 30 minutes earlier tonight.”

Over time, Eight Sleep has expanded its offerings to build a broader ecosystem, with products aimed at delivering different solutions to different sleep problems. This includes a software membership attached to the Pod and a line of supplements developed with Dr. Peter Attia, co-founder of Biograph, to support better sleep without prescription medications.

Eight Sleep’s founders report that revenue has grown 10x since 2020, with its Pod system generating more than $500 million in sales to date. The company was free cash flow positive in the first half of 2025.

Currently serving customers in over 30 countries, including the UK, Australia, Mexico, and the UAE, Eight Sleep plans to expand further into China and Singapore.

The Series D funding will support Eight Sleep’s AI roadmap, starting with development of a sleep agent that interprets biometric data and simulates thousands of digital twins per user to predict outcomes. The system will then intelligently adjust temperature, elevation, and routines to optimize recovery nightly.

This builds on Eight Sleep’s Autopilot feature, which the company says already makes millions of nightly adjustments using biofeedback.

Eight Sleep is also targeting the medical sleep market. Leveraging the Pod’s cardiovascular and respiratory monitoring capabilities, the company is working on AI-powered tools for menopausal sleep and sleep apnea, with plans to seek FDA approval for specific applications.

Q: What is Eight Sleep?
A: Eight Sleep is a sleep fitness company founded in 2014 that develops smart mattresses and AI-driven tools to improve sleep health.

Q: How much funding has Eight Sleep raised?
A: With its new $100 million Series D, Eight Sleep has raised over $260 million in total funding.

Q: What makes the Eight Sleep Pod unique?
A: The Pod adjusts temperature, elevation, sound, and wake-up timing in real time, while also tracking biometric data with clinical-grade accuracy.

Q: How will Eight Sleep use its new funding?
A: The company plans to advance its AI roadmap, expand into China and Singapore, and develop FDA-approved solutions for conditions like sleep apnea.

Q: What are Eight Sleep’s financial highlights?
A: Eight Sleep reports 10x revenue growth since 2020, more than $500 million in Pod revenue, and being cash flow positive in early 2025.

Eight Sleep’s $100 million funding round highlights the growing convergence of AI and health technology, where investors see opportunity not just in lifestyle improvements but also in addressing medical challenges like sleep apnea and menopausal sleep issues.

By combining real-time biometric monitoring with adaptive AI systems, Eight Sleep is building beyond consumer products into tools with potential clinical applications. Its progress toward FDA approval underscores how sleep technology is moving closer to mainstream healthcare.

For the broader market, this funding validates the demand for AI-driven wellness solutions that deliver measurable outcomes. For consumers, it signals a future where nightly rest could be continuously optimized — not just for comfort, but for long-term health.

Eight Sleep is aiming not just to improve sleep quality but also to influence the future of AI-driven health optimization.

Editor’s Note: This article was created by Alicia Shapiro, CMO of AiNews.com, with writing, image, and idea-generation support from ChatGPT, an AI assistant. However, the final perspective and editorial choices are solely Alicia Shapiro’s. Special thanks to ChatGPT for assistance with research and editorial support in crafting this article.