Just wondeirng, do you have a diagnosis of bipolar? This could be a slightly mixed episode but it's also very possible tha tit's just your depression with atypical features, like not sleeping and thens leeping too much, and with energy. If you are on medication this could also cause your fluctuatiosn in energy and sleep. As fo ryour thoughts about death and then seeing light the next day, that doesn't mean anything to me, except that some days you may not be as depressed as others, which is really a good thing. In order for this to be a mixed episode you have to have way more energy and less sleep and such than is normal for you, so not jus tmore energy and less sleep than when you're depressed. You'd have to ask your therapist or pdoc though.