About the Authors

Eliane A. Lucassen

Affiliation Clinical Center, National Institutes of Health, Bethesda, Maryland, United States of America

Xiongce Zhao

Affiliation Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

Kristina I. Rother

Affiliation Section on Pediatric Diabetes and Metabolism, National Institutes of Health, Bethesda, Maryland, United States of America

Megan S. Mattingly

Affiliation Section on Neuroendocrinology of Obesity, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

Amber B. Courville

Affiliation Clinical Center, National Institutes of Health, Bethesda, Maryland, United States of America

Lilian de Jonge

Affiliation Section on Neuroendocrinology of Obesity, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

Gyorgy Csako

Affiliation Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, Maryland, United States of America

Giovanni Cizza

cizzag@intra.niddk.nih.gov

Affiliation Section on Neuroendocrinology of Obesity, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

for the Sleep Extension Study Group

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KIR G. Csako G. Cizza. Performed the experiments: EAL MSM ABC G. Cizza. Analyzed the data: EAL XZ KIR MSM ABC LdJ G. Csako G. Cizza. Wrote the paper: EAL KIR MSM LdJ G. Csako G. Cizza.