Primary sleep disorder-- A sleep disorder that cannot be attributed to a medical condition, another mental disorder, or prescription medications or other substances

Circadian rhythm sleep disorder is a disorder that affects the timing of sleep. People with this disorder typically have issues waking up by alarm clock but can sleep and wake when they wake by their body clock. You can get more information about this disorder at the Wikipedia.

Yes. Bipolar disorder is a mood disorder, not a sleep disorder, although it can effect sleep, depending on the person. It is very individual and differs from person to person in how it effects them.

Sleep Disorder - 2005 was released on:

USA: 2005

Sleep apnea