Full-Time

Director Mechanical Engineering

Updated on 9/3/2026

Eight Sleep

Eight Sleep

201-500 employees

Thermoregulated smart mattress with sleep tracking

Compensation Overview

$240k - $300k/yr

+ Equity participation + Performance-based equity refreshments

San Francisco, CA, USA

In Person

Five days on-site per week required; travel to Asia, including China, is required.

Bachelor's

Category
Engineering Management (1)
Required Skills
Supply Chain Management
Injection Molding
Product Design

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Requirements
  • 10+ years of experience developing complex electromechanical systems such as consumer electronics, automotive, or medical devices.
  • At least 2 years of direct management experience with mechanical and product design engineers.
  • Deep knowledge of injection molding, electronics and sensor integration, and mechanism design.
  • Experience scaling products to high-volume production in Asia.
  • Expertise in design for manufacturability and assembly, tolerance analysis, and geometric dimensioning and tolerancing.
  • A Bachelor of Science in Mechanical Engineering or equivalent.
  • Willingness and ability to travel to China as needed.
Responsibilities
  • Lead all aspects of mechanical engineering across the full development cycle.
  • Manage mechanical, soft goods, and prototype and test engineers.
  • Provide technical leadership on cross-functional trade-offs and architectural decisions spanning thermals, fluids, mechanisms, and sensing.
  • Travel to Asia to ensure teams and suppliers are delivering successfully against goals.
  • Ensure hardware products meet high standards of performance, user experience, and quality.
  • Shape and execute the hardware product roadmap with stakeholders across the company.
  • Work with the Chief Product Officer and executive team to define the hardware product roadmap and features.
  • Collaborate with stakeholders across electrical engineering, software engineering, sensing and clinical, operations, marketing, and finance to develop and launch products successfully.
  • Hire and coach talented engineers.
  • Foster a culture of excellence and collaboration.
  • Implement systems and processes to ensure the team operates efficiently, including design reviews and phase gates.
Desired Qualifications
  • Proficiency with thermal engineering, fluid systems, actuators, and soft goods.
  • A track record of launching products successfully under aggressive timelines with lean teams.

Eight Sleep sells hardware and subscription software to improve sleep quality. Its Pod Cover is a smart mattress cover with an Active Grid of water tubes connected to an external Hub; it heats or cools the bed and offers dual-zone climate control, while sensors track sleep stages, heart rate, HRV, and breathing to drive real-time temperature adjustments. The latest Pod 4 Ultra adds an adjustable base to reduce snoring, and the company charges for hardware plus a recurring app subscription, aiming to bundle more features into AI-powered sleep health tools. Its goal is to improve sleep and recovery while expanding into clinically applicable solutions and potential FDA-cleared health features.

Company Size

201-500

Company Stage

Late Stage VC

Total Funding

$312.2M

Headquarters

New York City, New York

Founded

2014

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Simplify Jobs

Simplify's Take

What believers are saying

  • March 2026 Tether funding valued Eight Sleep at $1.5 billion.
  • May 2026 Pregnancy Mode deepens subscription value and expands into postpartum users.
  • August 2026 Abu Dhabi studies and Aston Martin F1 broaden clinical and elite-performance credibility.

What critics are saying

  • Eight Sleep sued Orion Longevity on March 6, 2026, for patent infringement.
  • FDA sleep-apnea clearance remains unapproved; failure leaves Eight Sleep trapped in luxury hardware.
  • If insurers reject reimbursement, Pod demand stays capped among wealthy consumers.

What makes Eight Sleep unique

  • Eight Sleep’s Pod combines temperature control, biometric sensing, and Autopilot software.
  • 2026 biological-age features turn nightly sleep data into longevity analytics.
  • Eight Sleep’s sleep dataset spans 100,000-plus participants and 2.7 million hours.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Unlimited Paid Time Off

Commuter Benefits

Parental Leave

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

-3%
New York Post
Sep 3rd, 2026
Your bedding can now tell you how fast you're aging (thanks in part to biohacker Bryan Johnson).

Your bedding can now tell you how fast you're aging (thanks in part to biohacker Bryan Johnson). Published Sep. 3, 2026, 9:00 a.m. ET See more of our coverage in your search results. More people are looking to get the most out of their nightly slumber, turning to high-tech mattresses and bedding to track their sleep data and achieve a perfect night's rest. Now, the brand that once described itself as a "sleep fitness" company has partnered with the "immortal uncle" to offer a way to see how fast you're aging while catching some Z's. Eight Sleep, maker of the buzzy Pod bed cooling system, has just added a biological age feature to help users better understand not just how well they're sleeping - but also how well they're aging. The company developed the latest tech with biohacker and longevity mogul Bryan Johnson, a longtime advocate of prioritizing sleep who has used the Pod for years. "Bryan has spent years focused on measuring the factors that influence the pace of aging," Matteo Franceschetti, co-founder and CEO at Eight Sleep, told The Post. "That perspective helped shape how we think about making longevity data more accessible and useful in everyday life." The Eight Sleep Pod system consists of cooling pillow covers, a mattress cover to track biometric data, a hydro-powered blanket that connects to the cover and a hub, which powers the system. Using sensors built directly into the Pod mattress cover, the new feature measures several biological signs of aging - including heart rate, heart rate variability, respiratory rate, sleep stages, and sleep duration - and can account for individual metrics of two people in the same bed at the same time. Users also have the option of connecting a wearable fitness tracker, like an Apple Watch, to add data from their daytime activities and medical records for a more comprehensive picture. Unlike chronological age - the time that's passed since a person's birth - biological age measures the functional condition of a person's cells, tissues and organs. Several factors play a role in how well someone ages biologically, including genetics, weight, environmental exposures and lifestyle habits, such as diet, exercise and, of course, sleep. "Because it is part of the bed, the experience is effortless," Franceschetti explained. "You simply sleep in comfort while the Pod builds a continuous picture of how your body is functioning night after night." To ensure the cover's sensors provided the most accurate results, measurements were validated against clinical gold standards. For instance, sleeping heart rate was 99% accurate compared with an ECG, while respiratory rate was 98% accurate compared with respiratory inductance plethysmography, a tool used to measure lung volume and breathing patterns. "For Biological Age specifically, we trained a new health foundation model using data from more than 100,000 participants and 2.7 million hours of biometric data collected during sleep," Franceschetti explained. "That accuracy is the foundation for Biological Age." Along with biological age, the system also focuses on speed of aging, or the estimated pace at which the body is aging relative to calendar time. While Biological Age and the Pod aren't meant to replace clinical care, consistency is key to fully understanding how someone's health is "changing over time relative to their own baseline, while also comparing those patterns with people of similar age and gender," according to Franceschetti. "I think Eight Sleep customers will love the Biological Age because it can help them build intuition around how their lifestyle choices affect their health," Johnson said in a press release from Eight Sleep. The most current Pod system runs for $2,999 with a five-year warranty. Eight Sleep offers a 30-night risk-free trial, as well as free shipping and free returns.

Fortune
Aug 24th, 2026
Eight Sleep pursues FDA clearance for sleep apnea treatment to shift from $3,000 luxury gadget to insurer-backed medical device

Eight Sleep, maker of a $2,999 smart mattress cover, is pursuing FDA clearance to detect and treat sleep apnea. Chief executive Matteo Franceschetti said the filing is progressing "fairly smoothly" and the company is conducting clinical studies. The company aims to position the Pod as a prescription diagnostic device and CPAP alternative, hoping insurers will cover it rather than relying on out-of-pocket purchases. Eight Sleep raised $50 million from Tether in March at a $1.5 billion valuation and was profitable in 2025. The firm has raised over $310 million total and now sells in 35 countries. Cumulative Pod sales exceed $500 million, according to Franceschetti. The company is also conducting trials in Abu Dhabi testing whether the Pod can automatically reposition sleep apnea patients.

Abu Dhabi Media Office
Aug 6th, 2026
Department of Health - Abu Dhabi and Eight Sleep partner to study how AI could manage sleep apnoea.

Department of Health - Abu Dhabi and Eight Sleep partner to study how AI could manage sleep apnoea. * home * Health * Department of Health - Abu Dhabi and Eight Sleep partner to study how AI could manage sleep apnoea. The Department of Health - Abu Dhabi (DoH) and Eight Sleep, the global leader in sleep technology, have collaborated to study how AI-powered sleep technology could provide a new approach to managing conditions like sleep apnoea. The partnership will begin with a first-of-its-kind clinical study in Abu Dhabi that connects real-world data from Eight Sleep's technology with Abu Dhabi's population health data. The initial study will focus on sleep apnoea, one of the most widespread and underdiagnosed sleep-related conditions globally. It will examine how smart bed technology, including real-time adjustments to body position, may help improve how the condition is managed. During the 12-week study, Eight Sleep's technology will capture continuous sleep and physiological signals such as heart rate, breathing rate, movement, snoring, and positional data. Uniquely, this information will be connected into Abu Dhabi's intelligent health system, allowing researchers to analyse these signals alongside participants real-time health data, including relevant clinical, genomic and lifestyle data, to identify patterns that may help to inform future treatment pathways and clinical research. The study will be conducted by Sheikh Shakhbout Medical City, an Abu Dhabi medical research hospital, and will operate with built-in oversight, governance, and data protection protocols. Her Excellency Dr. Noura Khamis Al Ghaithi, Undersecretary of the Department of Health - Abu Dhabi, said: "Quality sleep is one of the strongest foundations of long-term health, yet common sleep disorders like sleep apnoea can significantly undermine it, raising the risk of serious health conditions when left unmanaged. Our collaboration with Eight Sleep reflects Abu Dhabi's commitment to the future of health: using data, research, and innovation to predict risk, intervene earlier, and improve outcomes. By generating real-world evidence from consumer sleep technology and integrating it with Abu Dhabi's intelligent health system, we can help inform personalised care pathways for people with sleep apnoea and other related disorders affecting sleep." The findings are expected to contribute to the evidence base for how consumer health technology can be responsibly integrated into clinical care and preventive health models. The research will also help evaluate how continuous sleep monitoring can complement existing clinical assessments and support future healthcare planning across the emirate. Matteo Franceschetti, Co-founder and CEO of Eight Sleep, said: "Sleep is one of the most powerful signals of human health, yet it has historically been undermeasured and underutilised in medicine," said. "This partnership with the Department of Health - Abu Dhabi is an important step toward making sleep a core pillar of preventive care. By combining Eight Sleep's continuous sleep data with Abu Dhabi's world-class health intelligence infrastructure, we can help generate the clinical evidence needed to personalise interventions, support earlier action, and improve health outcomes over time." Dr Marwan Al Kaabi, Chief Executive Officer, Sheikh Shakhbout Medical City, said: "Clinical research plays a critical role in transforming promising innovations into evidence that can improve patient care. Through this collaboration, Sheikh Shakhbout Medical City is helping evaluate how emerging technologies can be rigorously assessed within real-world clinical settings to generate insights that inform future models of care. As an academic medical centre, we are committed to advancing research that supports more personalised, preventive and data-driven healthcare, creating lasting value for patients, clinicians and the wider health system." Affecting nearly one billion people globally, sleep apnoea is a complex condition associated with increased risks of hypertension, type 2 diabetes, cardiovascular disease and cognitive decline. Symptoms often develop gradually and vary from night to night, so continuous monitoring has the potential to support earlier detection, more personalised interventions, and improved long-term management. While the initial study focuses on sleep apnoea, DoH and Eight Sleep plan to study how sleep, temperature regulation, and recovery effect other areas of health, such as menopause and cancer care. The findings are expected to help show how everyday consumer health devices can be used safely and responsibly within clinical care and prevention. The collaboration reinforces Abu Dhabi's continued investment in clinical research, health intelligence and responsible adoption of emerging technologies. By generating evidence within real-world care settings, the DoH continues to evaluate new approaches that can strengthen preventive health and improve long-term patient outcomes.

Bitget
Jun 28th, 2026
Tether leads $50M Eight Sleep funding round at $1.5B valuation

Tether has led a $50 million investment round in Eight Sleep, an AI sleep tracking startup, valuing the company at $1.5 billion. The funding follows a $100 million round raised by Eight Sleep in August 2025. Eight Sleep develops AI-powered sleep health technology, including the Eight Sleep Pod, which monitors biometric data such as heart rate, breathing and sleep stages. The system automatically adjusts bed temperature, elevation and sound settings based on real-time sleep patterns. The partnership will integrate Tether's QVAC architecture, which processes health data locally on devices rather than external servers. Eight Sleep is developing a predictive AI sleep agent trained on over one billion hours of sleep data and pursuing FDA filings for sleep apnoea detection. The investment reflects Tether's expansion beyond cryptocurrency into sectors including health technology and artificial intelligence.

CNET
May 5th, 2026
Eight Sleep's new Pregnancy Mode adjusts your bed temperature so you don't have to.

Eight Sleep's new Pregnancy Mode adjusts your bed temperature so you don't have to. The sleep tech company's latest feature tracks physiological changes during pregnancy and postpartum to automatically fine-tune your sleep. Nasha Addarich Martínez May 5, 2026 6:00 a.m. PT If you've ever been pregnant (or know someone who has), you know that sleep gets harder as the pregnancy progresses. One minute you're freezing, the next you're waking up to night sweats. Most likely, your sleep environment hasn't changed, but your body has. Eight Sleep, the company behind the Pod smart mattress cover and sleep tracker, just launched Pregnancy Mode, an AI-powered system built for the physiological changes brought on from pregnancy and postpartum. It's available now as a free app update for all Eight Sleep members with a paid Standard, Enhanced or Elite subscription ($17 to $33 per month). When you activate Pregnancy Mode within the app, the system uses your pre-pregnancy temperature baseline, your last menstrual period date and your estimated due date to automatically calculate weekly temperature adjustments across all sleep stages. Eight Sleep's dataset of over 100 pregnant members and 50,000 nights of sleep data found that in the early stages of pregnancy, your body tends to sleep warmer (about 0.4 to 0.7 degrees Fahrenheit) than your pre-pregnancy baseline temperature. The study also found that by the third trimester, it's the complete opposite - pregnant people were setting their Pods nearly 3.5 degrees cooler than normal. Pregnancy Mode also tracks that curve and continues to adjust eight weeks postpartum. The feature includes a dedicated Pregnancy Insights card in the app, where you can see weekly biometric summaries of your heart rate, heart rate variability, respiratory rate, sleep stages and snoring. It'll also compare these metrics to your pre-pregnancy scores. Baby development milestones and prenatal visit reminders are part of this new feature, too. Partners sharing the bed will get their own weekly insights on what to expect and how to help their pregnant significant other. Pregnancy Mode is now available in the Eight Sleep app on iOS and Android. The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives. Other sleep guides. Bed Accessories Sleep Tech NASHA ADDARICH MARTÍNEZ Managing Editor Nasha is a Managing Editor for CNET, overseeing its sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic practices transcends her personal life and profoundly influences her editorial approach, as she weaves evidence-based insights with practical advice to inspire readers to lead healthier, more balanced lives. Throughout her career, she's covered various topics including financial services, technology, travel and wellness. See full bio