Sleep diagnostics from the comfort of home.

The world is tired – literally. Hundreds of millions of people suffer from sleep disorders such as sleep apnea, insomnia, and circadian rhythm disruptions. These conditions are not just inconvenient; when left undiagnosed, they increase the risk of serious health problems, including heart disease, diabetes, depression, and stroke. Not to mention the related perils of serious vehicle-related accidents, workplace accidents, and medical errors due to fatigue.

Yet diagnosing sleep disorders is often challenging. Sleep studies often require specialized equipment, trained personnel, and significant clinical resources. Around the world, sleep clinics struggle to keep up with growing demand for testing and diagnosis.

One company from Reykjavík, Iceland, is helping clinicians address this challenge by modernizing how sleep diagnostics are performed.

Founded in 2006 by a team of engineers, medical professionals, and investors, Nox Medical set out to transform sleep diagnostics. As with many ideas, the actual concept was straightforward: to design accurate, reliable, and patient-friendly technology. The challenge? 

Replacing complex sleep studies, which often involve dozens of wires and bulky machines with trained staff, with portable, intuitive devices that can still deliver accurate data.  

Sleep diagnostics today can take place in different settings depending on the patient’s needs, from comprehensive overnight studies in sleep laboratories to simplified home sleep tests. Nox Medical develops technology that supports both approaches, giving clinicians the flexibility to choose the right diagnostic pathway for each patient. 

Nox did not become a global leader overnight. The company advanced step by step, building successive generations of diagnostic tools that improved technology, miniaturization, user experience, and data accuracy. From the release of its first portable sleep monitor in 2009 to the development of its current generation PSG systems and AI-powered cloud platforms, Nox consistently refined its technology to better serve clinicians and patients alike.  

Today, Nox Medical’s solutions are used by sleep specialists and approved by healthcare systems in dozens of countries, helping millions of people receive accurate diagnoses and timely treatment, comfortably, quickly, and with greater accessibility. 

At the heart of Nox Medical’s success is a commitment to engineering solutions that prioritize both clinical accuracy and the patient’s experience. Each equipment version responded to real-world feedback, simplifying setup, reducing the number of wires, and continually striving to improve signal quality and analysis capabilities. Devices such as the Nox T3® home sleep test system and the Nox A1® polysomnography system are designed to capture detailed physiological signals while prioritizing patient comfort. Wireless sensors, lightweight equipment, and streamlined setup help make sleep studies less disruptive while preserving the quality of diagnostic data clinicians rely on. 

Unlike consumer sleep apps or wearables that estimate sleep patterns indirectly, Nox systems measure physiological signals used in clinical sleep medicine. These include respiratory airflow, breathing effort, oxygen saturation, and other signals used to diagnose sleep-disordered breathing. Respiratory Inductive Plethysmography (RIP) belts, for example, measure breathing effort by detecting chest and abdominal movements with each breath. These signals allow clinicians to analyze breathing patterns and sleep stages and to understand disruptions in sleep.

The company’s most recent breakthrough is Nox Connect. This secure, cloud-based platform combines AI-powered scoring, web-based interpretation, and comprehensive home testing logistics into a single service. Clinicians can now remotely order sleep studies, track testing kits, and receive FDA-cleared and CE-marked AI insights directly through the cloud. Ten years ago, this level of convenience and insight was hard to imagine.” 

Tools like Nox BodySleep™, part of DeepResp (SaMD), analyze a person’s breathing to determine when they are asleep, how deeply they are sleeping, and how often they wake during the night. Other features help doctors understand what is disrupting sleep and tailor treatment to each individual’s specific needs.

For many patients, access to sleep testing remains a barrier to diagnosis and treatment. Limited sleep lab capacity, geographic distance, and healthcare costs often delay testing. 

Nox technology supports clinicians across both home sleep testing and in-laboratory polysomnography, helping expand access to sleep diagnostics while maintaining clinical rigor. Home sleep testing can provide a convenient option for appropriate patients, while laboratory studies remain essential for more complex conditions. By supporting both diagnostic pathways, Nox helps sleep professionals reach more patients, reduce bottlenecks in care, and deliver testing that is both clinically appropriate and accessible.

As sleep medicine continues to develop, Nox Medical is helping redefine how and where diagnostics happen. The company continues to collaborate with researchers, clinicians, and academic institutions to advance the science of sleep and further enhance its diagnostic equipment and software ecosystem, which empowers both providers and patients. By combining Iceland’s renewable energy, digital expertise, and culture of health innovation, Nox Medical offers a glimpse of how small nations can have a significant impact on global health. 

Today, millions of patients around the world have already been diagnosed using Nox technology. The next challenge is ensuring that many more people with sleep disorders can receive the diagnosis and treatment they need.