I put "all of these", because It can happen anytime of day or night for me. I don't live on a regular schedual anymore, it's more like a viscious circle

, so morn, noon and night can happen anytime in the 24 hours.
I usually suffer the most when I am tired, stressed or sick. If I don't get up to early or too quickly, then Morn is good, then I must take an afternoon nap (4 hrs), and then I am usually fine at night.
I just can't stand all the excitement..