Biphasic Sleep: Post Mortem

I finished the Biphasic Sleep Experiment 4 days ago.  I have since slept 2 nights monophasic and 2 more nights biphasic.  Here is what I think after having experienced both. After 2 days of monophasic my midday lul (around 1:30 – 3 pm) decreased.  I wasn’t as tired, and after getting up and moving a bit it seemed almost non-existant, as compared to biphasic.  But without my afternoon/evening nap, I got tired much earlier than usual, around 1 am instead of 4 am.  And instead of waking up early like I always did during biphasic (without trouble) I slept in and ended up sleeping for about...