Given the identification of pathogenic SCN1A variants in individuals with SIDS, SUDC, and SUDEP, and given the known robust association between SCN5A [MIM *600163] and sudden death (Brugada syndrome), we sought to identify additional variants across the entire VGSC family of genes that encode for several brain‐ and cardiac‐expressed genes. Here, SCN1A is linked to sudden infant death syndrome.