Media type: E-Article Title: Warm feet promote the rapid onset of sleep Contributor: Kräuchi, Kurt; Cajochen, Christian; Werth, Esther; Wirz-Justice, Anna imprint: Springer Science and Business Media LLC, 1999 Published in: Nature Language: English DOI: 10.1038/43366 ISSN: 0028-0836; 1476-4687 Origination: Footnote: