Not sure if I should.

You should absolutely file a claim for your service-connected sleep disorder, as it is a well-documented condition that could provide the necessary rating to reach 100%. Your diagnosed sleep issue, with in-service documentation and ongoing treatment, establishes the essential elements for service connection: a current diagnosis, an in-service event or aggravation, and a medical nexus (link). The key is to claim it correctly; if it is a primary sleep disorder like insomnia or sleep apnea, it will be rated under 38 CFR § 4.97, Diagnostic Code (DC) 6847 (Sleep Apnea) or under DC 6840 for other sleep disturbances, which are rated based on the severity of symptoms and their impact on your occupational and daily functioning. However, if your sleep issues are a symptom of a service-connected mental health condition like PTSD, they should be claimed as secondary and will be evaluated as part of that condition's rating under 38 CFR § 4.130, where sleep impairment is a core symptom in evaluating occupational and social impairment. The precedent in *Buchanan v. Nicholson* supports that all symptoms attributable to a service-connected condition, including sleep disturbances, must be considered in evaluating its severity. Your actionable next steps are: 1) Obtain your sleep study results and a current diagnosis; 2) File a Fully Developed Claim (FDC) with this evidence, explicitly stating whether the claim is for a primary service connection or secondary to an existing service-connected condition; and 3) During your Compensation & Pension (C&P) exam, detail the profound functional impact of your sleep issues, such as chronic fatigue, inability to maintain employment, or medication side effects, as established in *DeLuca v. Brown* regarding functional loss. **Disclaimer: This information is for educational purposes based on general VA practices and is not legal, medical, or official claims advice; consult a Veterans Service Officer (VSO) or accredited agent for your specific case.**