How PTSD Can Lead to Sleep Apnea in Veterans

Many veterans suffer from both Post-Traumatic Stress Disorder (PTSD) and obstructive sleep apnea (OSA)—and growing research supports a strong connection between the two. Veterans with PTSD are significantly more likely to have sleep apnea than the general population. In fact, one study found that nearly 48% of combat veterans with PTSD had sleep apnea, compared to just 12.5% of healthy individuals.

Sleep Issues Are Common in PTSD

PTSD is known to cause serious sleep problems, including:

• Trouble falling or staying asleep
• Nightmares about trauma
• Frequent awakenings
• Night sweats or night terrors
• Daytime fatigue and anxiety

These sleep disturbances not only make PTSD symptoms worse, but they may also contribute to the development or worsening of sleep apnea.

Military Research Supports the Link

At Madigan Army Medical Center, researchers found that sleep problems are common among active-duty service members, especially those returning from deployment. Their study revealed that many service members diagnosed with sleep disorders also had PTSD, depression, anxiety, or mild traumatic brain injury (mTBI). They also found that nightmares and insomnia often persist even after PTSD treatment—showing how deeply sleep problems are intertwined with the condition.

Why Does PTSD Cause or Worsen Sleep Apnea?

Sleep apnea happens when the airway collapses during sleep, blocking airflow and causing the person to briefly wake up to breathe. PTSD may worsen this problem through several factors:

• Dysfunctional REM sleep: This is the sleep stage where dreaming happens. PTSD patients often have disturbed REM sleep, which may increase the risk of airway collapse.
• Nightmares and frequent awakenings: These repeated interruptions prevent deep, restorative sleep and increase fatigue.
• Overactive stress responses: PTSD can lead to constant “fight-or-flight” activation, which interferes with healthy sleep rhythms and breathing patterns.

Studies Support This Connection

Research has shown:

• PTSD patients have more stage 1 (light) sleep, less deep sleep, and more intense REM activity.
• More time in REM sleep is linked to increased nightmares in both PTSD and OSA patients.
• CPAP therapy (a breathing device used to treat OSA) has been shown to reduce nightmares and daytime sleepiness in PTSD patients.
• Jaw and throat muscle relaxation during REM sleep, along with irregular breathing patterns, makes people with PTSD more vulnerable to airway collapse.

What the VA Says

The VA has already recognized the connection between PTSD and sleep apnea in past decisions. In one case (BVA Docket No. 11-01922, March 28, 2016), the VA initially denied a veteran’s claim because the examiner said there was no medical evidence linking PTSD and sleep apnea.

However, in a medical opinion submitted by Dr. D. Anaise in 2014, the connection was supported by published studies and clear medical reasoning. The Board ultimately ruled in the veteran’s favor, stating that Dr. Anaise’s report was more persuasive, evidence-based, and supported by medical literature. The VA granted the claim for service connection for sleep apnea as secondary to PTSD.

Why This Matters

If you’re a veteran with service-connected PTSD and you’re also struggling with sleep apnea—or symptoms like snoring, gasping during sleep, excessive tiredness, or frequent awakenings—you may be entitled to VA benefits for sleep apnea as a secondary condition.

There’s now strong medical and legal recognition that PTSD and sleep apnea are often connected. Proper diagnosis, documentation, and expert medical opinion can make a significant difference in the success of your VA claim.