I heard someone talking about this on the radio and it got me interested enough to do some google searching.
Polyphasic sleeping is basically napping through the day and evening thereby reducing your total sleep time (down to as low as 2 hours per day!). Check out this guy’s pretty extensive journal of his experience.
Has anyone here ever given something like this a try? I was initially almost interested enough to give it a go but I think it would probably be pretty detrimental to my training goals.