Hi
The reasons how the pain happened is very important. So more people may give you advises.
I don't see anything in your brief post that sounds like a sleep disorder.
More detail perhaps posted in the heart disease community/forum may bring some help. Or, look up symptoms of heart attack which can cause pain in the arm and chest... please do not take this reply as a diagnosis of a heart attack, no one can make that diagnoses over the web.
Some time has passed since your post, if the pain continues it could be a good idea to consult a doctor.