Eight Sleep Raises $100M Series D to Advance Sleep Tech

According to TechCrunch, Sleep technology pioneer Eight Sleep raised a $100 million funding in Series D round, the company announced on August 19, 2025. The substantial investment will fuel the expansion of Eight Sleep’s AI-powered sleep platform and accelerate its reach into international markets as it works to revolutionize how people approach sleep health.

Funding Details and Investor Backing

The funding round was spearheaded by HSG = HongShan (formerly Sequoia China), with additional backing from Valor Equity Partners, Founders Fund, and Y Combinator. Notable individual investors include Formula 1 personalities Charles Leclerc and Zak Brown, highlighting the product’s appeal among high-performance athletes.

Eight Sleep Series D funding news brings total raised capital to $260 million throughout its history. While the company hasn’t revealed its current valuation, market analysts suggest it’s approaching unicorn territory, building upon its 2021 Series C that positioned the company near a $500 million valuation.

Impressive Financial Performance

Eight Sleep’s core product, the Pod smart mattress cover, has been a major commercial success since debuting in 2019. The device has generated more than $500 million in total sales, demonstrating strong market appetite for advanced sleep optimization tools.

The company’s financial metrics paint a picture of rapid scaling and disciplined growth. Revenue has increased by 10x since 2019, and Eight Sleep has maintained profitability for the majority of quarters over the past two years. Currently staffed with just over 100 full-time staff, Eight Sleep plans to grow its team to support expanded operations and continued product development.

Next-Generation Sleep Technology

Eight Sleep funding round 2025 is channeling substantial resources into developing cutting-edge sleep optimization features. The company’s priority initiative involves creating a personalized Sleep Agent, an intelligent system that generates and continuously adapts individualized recovery protocols for each user.

This Sleep Agent utilizes sophisticated digital modeling to dynamically modify sleep environments based on various lifestyle factors including travel schedules, stress levels, seasonal variations, and overall health conditions. The system works alongside Autopilot functionality, which provides real-time environmental adjustments to optimize each user’s sleep experience.

The company’s Health Check technology stands out for its precision, delivering cardiovascular and respiratory monitoring with up to 99% accuracy without requiring users to wear additional devices during sleep.

Specialized Health Applications

Eight Sleep is expanding into targeted health solutions with several new features in development. Hot Flash Mode will offer targeted cooling relief for individuals managing menopause symptoms. The company is also working on non-contact sleep apnea monitoring capabilities. A significant focus area involves pursuing FDA clearance for its health monitoring technology. Successfully obtaining this approval could classify Eight Sleep’s products as medical devices, potentially making them eligible for insurance coverage and opening new market opportunities in healthcare.

Global Expansion Strategy

Eight Sleep has already established international distribution, shipping to over 30 countries including Canada, the United Kingdom, European Union nations, Australia, Mexico, and the United Arab Emirates. The company is now preparing to enter the Chinese market, where there’s growing demand for premium health and wellness products among the expanding middle class.

To build brand awareness, Eight Sleep is diversifying its marketing approach beyond digital channels. The company plans to launch television advertising campaigns and partner with influencers to reach broader audiences. Additionally, Eight Sleep intends to open physical retail locations where potential customers can test the products before purchasing, a departure from its traditional direct-to-consumer online model.

Future Outlook

The successful Eight Sleep Series D funding showcases strong investor confidence in the company’s growth graph and market opportunity. It is strategically positioned at the convergence of consumer wellness technology and medical applications, with robust sales performance backing its ambitious expansion plans.

With enhanced product capabilities in development, regulatory pathways being pursued, and new global markets on the horizon, Eight Sleep is working to cement its position as a leading contender in sleep technology innovation. The $100 million investment provides the capital needed to execute this vision while maintaining the financial discipline that has characterized the company’s recent profitable performance.