When I actively try to go to bed early. No matter the day, or time. This always, unless I have a terrible migrane, leads to someone else (usually more than one person) doing whatever they can to keep me up at night. And I wonder why all my dreams are either so mundane or morbid, as of late. Clearly it's my brain punishing me for my lack of clairvoyance to sleep before others attempt to keep me awake for hours longer than desired. -.-