Sleeping at altitude is different—and your sleep testing and sleep apnea treatment should account for it.

As elevation increases, lower oxygen levels change the way the brain controls breathing during sleep. This can lead to periodic breathing, central sleep apnea, lower overnight oxygen levels, and fragmented sleep. For people who already have obstructive sleep apnea (OSA), Colorado altitude can make nighttime breathing more complex by adding central events and worsening oxygenation.

That matters whether you live along the Front Range or in the mountains. Someone living in Denver or Boulder may sleep very differently when spending time in Vail, Aspen, Summit County, or Steamboat Springs. New Colorado residents may notice changes after moving to altitude, while mountain-town residents and athletes training at altitude may experience disrupted sleep, poor recovery, or reduced performance even when they are otherwise exceptionally healthy.

Sleep Apnea Treatment at Altitude Requires a Different Approach

Treating sleep apnea at altitude isn't always as simple as diagnosing obstructive sleep apnea and prescribing CPAP. Altitude can produce a combination of obstructive sleep apnea, central sleep apnea, periodic breathing, and nighttime oxygen desaturation. Some patients also develop central apneas after starting CPAP, known as treatment-emergent central sleep apnea.

As a Colorado sleep physician, I specialize in evaluating these more complex breathing patterns and tailoring treatment to the elevation where you actually live and sleep. This may include at-home sleep testing in Colorado, PAP pressure optimization at altitude, overnight oxygen monitoring, CPAP and BiPAP troubleshooting, and adaptive servo-ventilation (ASV) when clinically appropriate.

Whether you live in Denver, Boulder, Vail, Aspen, Summit County, Steamboat Springs, or another high-altitude Colorado community, the goal is not simply to lower your AHI. It is to achieve stable breathing, healthy oxygen levels, restorative sleep, and better recovery at the altitude where you live, train, and perform.