The Veteran's appeal of the denial of service connection for a sleep disorder other than obstructive sleep apnea, to include insomnia, is dismissed.

Board reasoning

The Board dismisses the appeal due to the death of the Veteran, which divests the Board of jurisdiction over the underlying claim. Substitution is possible for eligible individuals, but no one has filed for substitution within the one-year period; if a substitution is requested and granted, the dismissed appeal may resume on the docket.