This report describes general characteristics of the group of diseases classified as advanced sleep phase syndrome. Advanced sleep phase syndrome is a genetically heterogeneous disorder, with multiple genes and mapped loci, and is characterized by early sleep onset and early morning offset. A listing of advanced sleep phase syndrome subtypes, as defined by OMIM, may be found in the table below, with links to more detailed reports for subtypes that have been investigated using fly models.
[updated May 2016 by FlyBase; FBrf0222196]
Advanced sleep phase syndrome is a sleep disorder that involves an altered circadian rhythm resulting in falling asleep in early evening and awaking very early in the morning.
Advanced sleep phase syndrome is characterized by very early sleep onset and offset (summary by Jones et al., 1999, pubmed:10470086). [From MIM:604348, 2016.05.24]