This is a major problem with me too. I do have severe sleep apnea ( 3 sleep studies) and even with the machine & oxygen I have mornings when I don't feel refreshed no matter how long I've slept. I've been experiencing a lot of debilitating aches and pains that are now getting worse. My doctor told me to get tested for fibromyalgia and chronic fatigue syndrome. Both are closely related to depression and BP. They often overlap. I hope you find the answers you're looking for.