07/29/2026
The short answer is: Yes, it can but it’s more nuanced than many people realize.
Research has consistently shown that veterans with PTSD experience obstructive sleep apnea at higher rates than the general population. Some studies suggest the relationship may even be bidirectional, meaning PTSD may contribute to sleep apnea, while untreated sleep apnea can worsen PTSD symptoms such as fatigue, irritability, impaired concentration, and nightmares.
However, association is not the same as causation.
Simply having PTSD and obstructive sleep apnea does not automatically establish secondary service connection.
The VA is looking for medical evidence that explains why those conditions are connected in your specific case.
A strong claim often includes:
• A confirmed diagnosis of obstructive sleep apnea through a sleep study.
• Documentation from the provider treating your sleep apnea.
• A comprehensive PTSD evaluation examining the severity of your symptoms, mental health history, and whether your PTSD at least as likely as not caused or aggravated your sleep apnea.
• A well-supported Nexus Letter, when clinically appropriate, explaining that relationship using your records, current medical literature, and sound clinical reasoning.
Every veteran’s case is different. That’s why a quality Nexus Letter should reflect your history, your symptoms, and your medical evidence.
If you’re considering filing a claim for sleep apnea secondary to PTSD, understanding what evidence the VA is actually looking for can make a meaningful difference.
Have you ever been told your sleep apnea might be connected to your PTSD?