I actually spent a little over a month (a few years ago) sleeping longer periods after two-day awake periods. My days basically looked like: - Sleep in until n

I actually spent a little over a month (a few years ago) sleeping longer periods after two-day awake periods. My days basically looked like: - Sleep in until noon (~14 hours sleep) - Pull an all nighter that night - Go to sleep around 10pm the next day (~34 hours awake) - Repeat It had its ups and downs, but the primary reason I stopped is because, while I was able to do more, I felt like a zombie most days (even the first day of the pair) and my work suffered greatly. I'm a software dev by trade, so I had some luck mitigating the loss of clarity and quickness in thought by structuring my workload where I'd write a suite of tests upfront in the first 4-6 hours after waking up (when I felt the most rested), and then relied on them for correctness while coding for the rest of the 2 days, rather than needing to think through issues. Things still slipped through (because often I was too tired to realize when the tests weren't comprehensive enough), but honestly it was a boon for my test-writing abilities and I think I could have eventually pulled off a decently high quality had I continued. Eventually I went back to a normal sleeping schedule, and I felt leagues more well-rested each day. My mood increased (well, except when thinking about all the stuff I could be doing if I didn't have to sleep as much) and I generally enjoyed life more on the whole, which is a huge bonus that I don't think I'd trade much for. It was an interesting experience, and one I've busted out for shorter periods when things at work need a lot of manpower behind a single man, but not something I'd go back to for a long period of time, I think.