I'm still interested in trying to sleep biphasically. So...
How hard would it be for my body to adapt to sleeping biphasically 4/7 of the week? Or how disruptive is it to shift nap/core times around often?
For instance, I could take my 1.5 from 8:30PM - 11:00PM and core from 2:30PM - 7:00AM wednesday to saturday, and shift the nap and core forwards a few hours on the other days.