<p>Parts of non-REM sleep are more important than REM sleep.</p>
<p>“The most damaging effects of sleep deprivation are from inadequate deep sleep. Deep sleep is a time when the body repairs itself and builds up energy for the day ahead. It plays a major role in maintaining your health, stimulating growth and development, repairing muscles and tissues, and boosting your immune system”</p>
<p>Every stage of sleep has its benefits to health. Maintaining a polyphasic sleep schedule over a long period of time may have detrimental effects. </p>
<p>well, there are 3 answers to this question for me:</p>
<p>(a) about 7.5 when there are no impending midterms/finals/papers due.
(b) 0-1 when it is a class i know i cant just wing it for the exam
(c) 7.5 if i know it is a class i havent studies for but can somehow wing it.</p>
<p>nah, just kidding. the last one is false i pull all-nighters for all classes that have midterms pretty much…</p>
<p>@altmnop
I assume that those who do polyphasic sleeping will be able to fall asleep pretty soon after lying down and shutting their eyes, or at least 5 minutes after they do so. Maybe they set their alarm for 2 hours and 10 minutes from when they lie down assuming it will take them 10 minutes to fall asleep. </p>
<p>@caiacs
Yeah it is probably not the healthiest thing to do but people have been able to sustain that lifestyle for extended periods of time (months-few years). </p>
<p>I actually failed at trying last night. My alarm actually did wake me up but I quickly shut it off, went back to bed, and proceeded to get 9 hours of sleep. lol. Maybe I will try again tonight. IDK</p>
<p>Some people are okay on 3-4 hours of sleep a night, some people feel like crap without 7-8.</p>
<p>If you can’t handle 3-4 hours of sleep, don’t force yourself to ‘get used’ to it! Manage your time more effectively.</p>
<p>I don’t understand the people who pull all-nighters DAYS before a final exam or midterm. Are you seriously that stressed (or have you procrastinated that much)? Even one all-nighter is a bit ridiculous to me, but I’m always baffled by the students who are up all night in Main Stacks when they don’t even have a test for three days.</p>
<p>I’m convinced these people stay up simply to be able to say “I failed and yet I pulled two all-nighters and studied for 48 hours straight! Pity me and my apparent studiousness!”</p>
<p>Yeah no probably not. My friends and I usually stay up late when we don’t have class early in the morning or when we have free time. Usually we start doing this maybe four or five days before the actual exam. When it’s the night before, we all go to bed really early to get a good rest. Some of us function really well at night. My peak hours are 10pm-2am lol.</p>
<p>Although, there are some people who just stay up late to b*tch and moan =P</p>
<p>highschool: 8 hrs of sleep a day + lots naps in class. 11pm-7am</p>
<p>freshman yr: wow classes start at 11am! 1/2am-9/10am. Standard engineering curriculum. 3.8 gpa that year.</p>
<p>soph yr: Took way too many difficult upper divs and had a tough time transitioning to living in an apartment. 3.3 gpa. 3/4am to 8/9am. ~5 hrs of sleep a day. Fell asleep in class a lot and it was GG.</p>
<p>This summer: internship in SF. 1am-7am. ~6 hrs. no naps.</p>
<p>I have never pulled an allnighter. Those are painful and bad for your health. I like to sleep at 9pm & wake up at 4am and study right before a midterm.</p>
<p>@Kev: I’m that guy. I regularly pull all-nighters before midterms and finals. Sometimes I do it because I’m lazy and don’t keep up during the semester, and other times I do it because I am stressed and REALLY want that A.</p>
<p>I sleep 9-10 hours normally during the semester though, so my body can take it.</p>
<p>However, some people do find the trade-off of extra time worth-while. Think of it this way. Would you rather have 100% mental capacity for 15 hours a day (assuming 9 hours of sleep), or would you rather have 75% mental capacity for 22 hours a day (assuming Uberman polyphasic sleep)?</p>
<p>But of course things don’t work that way. You can only sleep like that perhaps during exam-cramming time when remembering stuff is more important, and it will never work during lectures where you’re going to have your mind blank during the entire lecture and not absorb anything and lose productive hours in the end. Your friend who practiced is either gifted, genetically does not require as much sleep as others, or pumps enough coffee/cognitive-enhancing drugs to maintain mental capacity and kill his body along the way.</p>
<p>Thanks for that website. I didn’t read the whole thing but I took away a few points from it such as</p>
<p>"You will definitely not want to sleep polyphasically if:</p>
<p>you want to maximize your creative output
you want to maximize your peak alertness, your average alertness, or minimize the impact of your worst alertness levels
you want to maximize the health effects of sleep, etc."</p>
<p>I too think I will be able to learn and retain material more easily if I sleep like a normal person, and will continue to do as such during summer school. </p>
<p>Though, there has been speculation about very prominent, intellectual people of the past who did do polyphasic sleeping. While most people may not function at their peak in a polyphasic (particularly Uberman sleep schedule) it isn’t too hard to speculate that some could. </p>
<p>So during the break between summer session and fall I plan to take on the Uberman sleep schedule while simultaneously learning comp.sci. for courses that start in the fall. Hopefully I will be one of the few who can sustain such a life-style at optimum performance.</p>
i pull all-nighters for all classes that have midterms pretty much…</p>