Index SNPs rs12292911 (11p11.2, Pmeta = 1.51 × 10–9, mapped gene: PSMC3), rs2310752 (1p31.3, Pmeta = 3.68 × 10–9, mapped gene: PDE4B), rs359539 (3q25.31, Pmeta = 3.18 × 10–9, mapped gene: PLCH1), and rs56249331 (1p35.2, Pmeta = 8.48 × 10–9, mapped gene: PUM1) were shared between AD and sleep duration. The gene discussed is PDE4B; the disease is Alzheimer disease.