This is mostly for my own interest but how much sleep do you need to function? For how long can sleep deprevation last before you do funny things? What's your record? I knew of a guy in school who regularly only had five hours sleep per night, he thought sleeping longer was a waste of time. I also knew another guy who went for a week without sleep so he could finish his major project. He wasn't kidding and, while he spent that entire time in a lab, I'm not sure how he got home safely or really what he would be able to accomplish in a semi-comatose state! A lot of parents survive on a couple of sporadic hours of sleep for, litterally, years. How do you do?
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And ... for those of you who like the Barenaked Ladies ... "Who needs sleep? You're never gonna get it. Who needs sleep? Tell me what's that for? Who needs sleep you're never gonna get it, there's guys been awake since the second world war."