Creative1oner it's when I'm manic, and sometimes when I'm really anxious. When I'm depressed I can sleep 10 hrs and still be so tired and exhausted 2 hrs after I wake up. I also have fibromyalgia so normally when I'm depressed I'm also in a lot pain. So even though I sleep a lot it's a restless sleep. My fibro dr says that I don't go into Rem sleep.