As someone that has experimented with polyphasic sleep, I&#x27;d like to see some studies designed in such a way that they mirror what people actually do when they switch to one of these schedules. That is to say allow for an adjustment period.<p>I know for me, getting to the point where I could fall asleep for the naps was the hardest part. I ended up basically skipping a night of sleep and then entering into the nap protocol. That first couple of weeks was brutal but I stayed on a polyphasic sleep schedule for about 6 months.<p>I can&#x27;t definitively say that my cognitive function wasn&#x27;t reduced over that 6 month period, but it certainly wasn&#x27;t like being drunk.<p>At the time I was a professional poker player and I was not measurably less profitable per 100 hands and played a much higher volume than normal during that stretch. Ultimately I stopped the cycle due to loneliness. I already had a very solitary job, but adding another 6 - 8 hours of alone time to each day weighs on you for sure. I think with a normal, albeit flexible, job this would have been more sustainable for me.