[hattmall]

I've found that biphasic sleep seems to fill a similar role for me. When I'm able I don't set alarms or make any preparations toward going to bed. I just sleep when I'm tired and wake up naturally. That leads to me often falling asleep around dark and waking up about 2.5-3.5 hours later. Then I'm up for a few hours, and asleep again a little bit before the sun comes up for a few more hours.

Now when I'm not able to just sleep and wake up completely naturally it always sucks following a more normal schedule of going to bed around midnight waking up around 7.

So I try to prioritize the biphasic sleep with the idea that the stages are variable. As in sometimes I sleep through all 3 stages, sometimes I stay up after the first time I wake up, or sometimes I don't initially fall asleep until the last stage.

I find that my days don't fit a 24 hours schedule either, but I don't feel like they fit the same set amount of hours each day at all.My motivational and energy levels are just different depending on the day and have a wake / rest cycle that can fit with that is beneficial.