Here is my problem with people like you pulling out their study reference lists against every anecdote: results drawn about people in aggregate do not necessari

Here is my problem with people like you pulling out their study reference lists against every anecdote: results drawn about people in aggregate do not necessarily mean much for this specific person in this specific situation. "I am not the exception" is a good principle to live by, but it is also important to note that sometimes you are the exception, you are in exceptional circumstances, or you can become the exception (through exceptionally hard work for example, or exceptional stupidity. Being the exception is not always a good thing). My experience is similar to lightcatcher's. When I was younger, before I was married and had kids, it was common for me to sleep 0-3 hours for a few days while I was working on something and then crash for a few days, sleeping 10-14hrs. Basically I slept when I felt tired, stayed up if I still felt alert. At the time I did not feel less productive and I did not feel like I was putting out lower quality work. Looking back objectively those were the most productive times of my life to date, and the quality of the work was on-par or better with anything else I have done. Temporary sleep deprivation under specific conditions was highly effective by all the objective measures I can think of.