We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleInsomnia and long sleep duration are risk factors for later work disability. The Hordaland Health Study.AuthorsSivertsen, Børge; Øverland, Simon; Pallesen, Ståle; Bjorvatn, Bjørn; Nordhus, Inger Hilde; Mæland, John Gunnar; Mykletun, ArnsteinPublicationJournal of Sleep Research, 2009, Vol 18, Issue 1, p122ISSN0962-1105Publication typearticleDOI10.1111/j.1365-2869.2008.00697.x