We have all been told at some point in our life that we need to get a good nights sleep because we have something important the next day. I personally enjoy sleep and try to get as much as I can while keeping my grades up. But for those of us that do not enjoy sleeping or feel like the act of sleeping is to time consuming, there is a solution to your problem. The polyphasic sleep method is a technique that allows you to be a fully functioning human on two to three hours of sleep a day.
Unless you already practice a polyphasic sleep method, you most likly use the traditional eight hours straight monophasic sleep method. This is how we are brought up and is the social "norm," but this is not the only way to rest our bodies and brain. Futurist Richard Buckminster Fuller came up with the method of sleep that allows the body to be fully functional on two hours of sleep per day. How does one do this? Frequent naps that last roughly thirty minutes, four times daily. Fuller called this method the dymaxion sleep method.
It is safe to use but not necessarily safe to start. In order for the method to work your brain must be trained to instantly begin REM sleep upon falling asleep. To train your brain one must first deprive the brain of sleep for roughly two to three days and then sleep only for thirty minutes at a time. It can take up to a few weeks to change your circadian rhythms, this period is very hard on the brain and rest of the body and most subjects who start using a polyphasic sleep patterns show signs of severe sleep depravation when starting out. After a while studies have shown that the sleep patterns do increase productivity. Below I have some links if you would like to read further into the subject.
http://www.tandfonline.com/doi/abs/10.1080/02678378908256879 (case study)