September 14, 2018

Trudell Medical International’s High-Altitude Sleep Mask Now Available in Parts of Europe

TMI's High Altitude Sleep Mask

Trudell Medical International (TMI) is excited to announce its new High-Altitude Sleep Mask is now approved for sale in Austria, Belgium, France, Germany, Italy, the Netherlands, Spain, Switzerland, and the United Kingdom.

Venturing to high-altitude locations is increasingly common, and more and more people are being exposed to the effects of these hypoxic environments. TMI’s High-Altitude Sleep Mask is a new Class I medical device that provides a combination of mild exhalation resistance and CO₂ rebreathing. The result is a drug-free method of mitigating the effects of disrupted sleep at high-altitude by reducing high-altitude periodic breathing.¹ An added benefit of the TMI High-Altitude Sleep Mask is that rebreathing improves the heat and humidity of inhaled air in the typical cold, dry environment at altitude.

Equally exciting is that a recent pilot study shows that TMI’s High-Altitude Sleep Mask also reduces the severity of high-altitude headaches, the most common symptom of Acute Mountain Sickness (aka altitude sickness). 1

For more information please visit


1 Based on unpublished results from a pilot study completed in March 2018