Yes, it is possible to get disability compensation for diagnosed mental illness.
However, that is NOT the same as unemployment compensation. Because it literally deals with an insurance claim, some sort of proof regarding cause-and-effect would be required before payment(s) would be authorized. Countries other than the US may employ different policies. Please be more specific in the details of your question.
In most cases, a person can not draw unemployment when they were fired for falling asleep. To draw unemployment, a person needs to be fired for doing the job incorrectly, or job performance. You should still file for benefits and see if you get approved.
of course
That's up to the judge, but it is possible.
Yes, you can collect them both.
It depends on the state you work in. Some allow it, while others do not.
Although states laws vary, typically you are ineligible for unemployment benefits if you voluntarily quit due to personal reasons not attributable to the work.
Yes
It depends on what your state's unemployment laws are regarding reasons for termination. If your work was very serious in that sleep would be very harmful/dangerous (i.e. asleep at the controls of a train), then the employer would be justified.
Organic mental diseases are diseases which originate due to an "organic" factor like alcohol, a metabolic disorder or aging. The thing is that there is no such term as 'inorganic mental disease'. I think that the term is meant to differentiate between mental illness that is part of a disease process like Alzheimer's from more 'natural' conditions (why alcohol is considered natural seems to me to be debatable.).
Mental disturbance is milder (insomnia due to stress). Mental disorder is more severe (anxiety disorder). Mental disease is severest (schizophrenia). The line of treatment, the prognosis differs.
A disease is when mental, physical or sometimes social health is affected due to an ifection of pathogens. It is only a disease if you have the symptoms of the disease (eg. white spots on the tonsils for tonsillitis)
Yes, but it is more often referred to as a disorder. It can be due to a mental disorder, such as depression or BDD (Body Dismorphic Disorder). The effects can be as dangerous as other disease or illnesses, and can be fatal in some cases.