Errata

In Kessler RC, Berglund PA, Coulouvrat C, et al. Insomnia and the performance of US workers: results from the America Insomnia Survey. SLEEP 2011;34(9):1161–1171 there was an inaccuracy in the annual lost productivity in the US due to insomnia-related lost work performance. In the paper, on page 1168, left column, third full paragraph, the authors stated the annual estimated cost at $59.8 billion, which came from a preliminary model. The final model cost estimate was $63.2 billion annually, which the authors failed to update in the final revision of the manuscript that was published. Other sections of the paper used the correct $63.2 billion estimate.

The authors regret this error.

In Rogers VE, Marcus CL, Jawad AF, Smith-Whitley K, Ohene-Frempong K, Bowdre C, Allen J, Arens R, Mason TBA. Periodic limb movements and disrupted sleep in children with sickle cell disease. SLEEP 2011;34(7):899–908 a funding source was omitted from the Acknowledgments. The sentence acknowledging funding should read: Research was sponsored by the National Institutes of Health/NHLBI grant #5RO1HL079911-04 and Clinical and Translational Research Center grant # UL1-RR-024134.

The authors regret this omission.