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We used whole exome and Sanger sequencing to identify disease\u2010causing variants in a Pakistani family with intellectual disability, microcephaly, facial dysmorphism, neutropenia, truncal obesity, speech delay, motor delay, and insomnia. We identified a novel homozygous nonsense variant c.8841G\u2009&gt;\u2009A: p.(W2947\u2009<jats:sup>\u2217<\/jats:sup>) in <jats:italic>VPS13B<\/jats:italic> (NM_017890.5) which segregated with the disease. Sleep disturbances are commonly seen in neurodevelopmental disorders and can exacerbate medical issues if left untreated. We demonstrate that individuals with Cohen syndrome may also be affected by sleep disturbances. In conclusion, we expand the genetic and phenotypic features of Cohen syndrome in the Pakistani population.<\/jats:p>","DOI":"10.1155\/2023\/9993801","type":"journal-article","created":{"date-parts":[[2023,4,12]],"date-time":"2023-04-12T18:35:07Z","timestamp":1681324507000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Novel Variant in <i>VPS13B<\/i> Underlying Cohen 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