Key Investor Signals
Runs Ramsay Health Care's remote sleep apnoea pathway
is one of the largest private hospital groups in the United Kingdom. It has partnered with Theta Sleep to deliver the full pathway from referral through diagnosis, treatment, and ongoing management. Sleep studies take place at home and consultations are delivered remotely.
Reports a six-week pathway versus an 87-week NHS average
Theta Sleep reduces time from 87 weeks to six weeks, making the pathway 10–20 times faster. It also delivers the service at a 40% discount to the .
Founding doctors combine 20+ years of sleep-service experience with Oxford training
Medical director David Dawson has established and run NHS and private sleep services that have treated tens of thousands of patients. Chief medical officer Tom Chambers holds an MSc in Sleep Medicine from Oxford and is an .
Other Positive Signals
- Published NHS sleep-clinic results showing that digital pre-appointment education reduced clinic time by 20%, while more than 95% of patients found the content useful.
- Went live on HealthKey in June 2026, giving employees access to home sleep testing and clinical consultations through employer health benefits.
- Partnered with Zeus Sleep in May 2026 to route customers with possible into clinical testing and treatment.
- Registered with the and verified against key NHS requirements including , , and .
- Launched a modular NHS service in November 2025, allowing providers to buy the complete pathway or targeted waiting-list support.
Team
Will Chambers
Co-founder and CEO
- Co-founded Bramble and served as COO from 2017 to 2023. The platform supported £75M in live teaching for 160,000 users across 180 countries.
- Worked as a product manager at Immerse, designing virtual-reality training with Harvard Medical School doctors.
- Previously built an online music publication that reached more than four million views and produced paid content for The Guardian and Microsoft.
Tom Chambers
Co-founder and Chief Medical Officer
- Holds an MSc in Sleep Medicine from the University of Oxford and is an ESRS-certified Somnologist.
- Led a cross-site project at introducing home sleep testing into .
- Reviewed more than 400 patients as a sleep and ventilation clinical fellow and sits on the 's Sleep Medicine Section Council.
Olly Freeman
Co-founder and CTO
- Led engineering at 1047 Games as the company reached a $1.5B valuation and built infrastructure supporting more than 175,000 concurrent users.
- Served as VP of Engineering at Y Combinator-backed Let's Do This, where he built its booking system.
- Worked as a technical lead at Hudl, helping rebuild its sports-video platform and authentication system.
David Dawson
Co-founder and Medical Director
- Has run local sleep services in the NHS and private sectors for more than twenty years, establishing services that have seen tens of thousands of patients.
- Managing director of OSA Risk Management since 2005 and managing partner of Sleep Doctor since 2017, both focused on .
- Consultant anaesthetist in the NHS since 1986, and non-executive director of Sovereign Health Care since 2020.
Product
Theta Sleep delivers a five-step sleep apnoea pathway through one platform: patient education, digital triage, home testing, specialist consultation, and treatment. Patients begin in the Theta Care app, where they learn about the condition and complete a structured assessment of their sleep history and symptoms.
Clinical decision-support software selects the appropriate home test, after which a specialist doctor reviews the results, discusses the care plan remotely, and arranges treatment when required.
The complete clinical pathway delivered at home
Diagnostic equipment is delivered to the patient, consultations take place by video or telephone, and treatment equipment can also be sent directly to the home. Every clinical appointment is conducted by a doctor, with ongoing management available after treatment begins.
A test selected around each patient's needs
Theta Sleep can provide novel home diagnostics, , or full . Its clinical decision-support software selects the appropriate test in line with guidance, rather than limiting patients to the equipment available at one hospital.
Modular and ready for NHS commissioning
NHS providers can use the complete pathway or purchase individual components, including diagnostic waiting-list support and services for surgical or maternity patients. Theta Sleep is and meets key NHS requirements including DTAC, DCB1596, and Cyber Essentials.
Market Overview
Around one in five adults in the United Kingdom has sleep apnoea and has never been diagnosed. Diagnosis runs through hospital respiratory services, which compete for the same rooms, beds and specialists as every other respiratory condition. A third of all NHS respiratory referrals are now for sleep, and demand for sleep studies has risen 102% in three years, making them the fastest-growing key diagnostic test the NHS performs.
Theta Sleep can sell to the NHS organisations carrying the waiting lists and to private hospital groups that want to add sleep services without building an internal team. Employers and individuals provide additional routes into the same clinical pathway.
Around one in five adults has obstructive sleep apnoea and has never been diagnosed. The condition interrupts breathing repeatedly through the night, and untreated it raises the risk of heart attack, stroke, high blood pressure, diabetes and dementia.
Theta Sleep reports that the average NHS patient waits more than a year and a half for treatment, despite the diagnostic test taking one or two nights.
Theta Sleep reports that an spent an average of £4M diagnosing sleep apnoea in 2024/25, before treatment and follow-up costs.
On current pathways the NHS is on track to spend more than £1B on sleep apnoea diagnosis alone over the next five years.
Comparable Outcomes
Medica Group
built a remote clinical network that interpreted hospital scans for more than 200 healthcare clients. Its platform connected clients with over 750 radiologists, radiographers, and specialist doctors, helping NHS providers manage diagnostic backlogs. completed the acquisition in July 2023 for approximately £269M.
Itamar Medical
developed WatchPAT, a home sleep apnoea test worn on the finger overnight. The company moved diagnosis outside the sleep laboratory and expanded into cardiology, where sleep apnoea is a common comorbidity. completed the acquisition in December 2021 for approximately $538M.
Respironics
developed diagnostic and therapeutic devices for obstructive sleep apnoea, including home respiratory equipment and systems. Its products were sold across 141 countries before the acquisition. acquired Respironics in March 2008 for approximately $5.1B.
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Sources
This profile was built from public company materials, ecosystem sources, market references, and professional profiles.