A<unk>  is a record of an individual's<unk> ing and waking times with related information, usually over a period of several weeks. It is self-reported or can be recorded by a care-giver. The<unk> , or<unk>  log, is a tool used by doctors and patients. It is a useful resource in the diagnosis and treatment of especially circadian rhythm<unk>  disorders, and in monitoring whether treatment of those and other<unk>  disorders is successful.<unk> es may be used in conjunction with actigraphy. In addition to being a useful tool for medical professionals in the diagnosis of<unk>  problems, a<unk>  can help make individuals more aware of the parameters affecting their<unk> . This data alone can help people self-diagnose what helps them get a good<unk> .
Sleep diary
Sleep study
Somnology
Actigraphy
Personality test
Polysomnography
Rating scales for depression
Optometry