The Veteran's claim for service connection for a sleep disorder, to include insomnia and dyssomnia is denied as there is no competent medical evidence establishing an etiological relationship between the claimed condition and his military service.,Service connection for sleep apnea was not established. The Veteran did not provide sufficient evidence to establish that he had this condition during service or since then.

The Board has remanded the case due to an inadequate opinion regarding the relationship between any current acquired psychiatric disorder and service, specifically a claimed in-service personal assault. The Veteran's contentions are that he did not report or seek treatment for this assault because he feared it would complicate his discharge.

The Veteran's claim for a separate disability rating for insomnia is denied as it is subsumed under his service-connected PTSD.,The effective date for the grant of service connection for PTSD is denied as no new and material evidence was submitted within one year of the July 1986 denial, making the June 9, 2017, claim without legal merit.,The effective date for the grant of service connection for OSA is denied as no new and material evidence was submitted within one year of the April 2013 denial, making the June 9, 2017, claim without legal merit.

The Veteran's service connection claim for insomnia is granted as the evidence supports a finding that his current insomnia began during and has continued since service, and was at least as likely as not caused by service.

The Board has granted a 70 percent disability rating for the Veteran's service-connected MDD, including insomnia and anxiety disorder, effective from November 13, 2024. The decision concludes that the Veteran's symptoms have most nearly approximated occupational and social impairment with deficiencies in most areas.