<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>notadev</author><text>Most Sailors on ships work in watch rotations. If you’re lucky it’s three shifts, but more often than not it’s “port and starboard” shifts of 12-on&amp;#x2F;12-off. This is especially hard for those who work nights.&lt;p&gt;Even if your shift ends at, say, 0800, you still have to eat, then attend muster (like a daily standup), then do an hour or so of “cleaning stations”. Afterward you can’t go to sleep yet because the berthing where you sleep is waiting for the XO to inspect. Once that’s all done, you are still up because they planned a General Quarters (GQ) drill or a man overboard at 1000. Two hours later and you are finally free, but it’s lunch so you might as well eat. You have about 8 hours left, but you are also delinquent on 2 or 3 qualifications that require walk-through a or attending trainings which only happen during the day. Maybe you want to send an email home, so you go to the library to wait for a free computer.&lt;p&gt;By the time that’s all done, you have about 4 or 5 hours to sleep. You might be able to do that without problem for a day or two, but a week later and you are friend.</text><parent_chain><item><author>uh_uh</author><text>Why do they do this?</text></item><item><author>crooked-v</author><text>I have to wonder how much of this support is the military trying to find a technological workaround so they can keep using schedules that intentionally leave everyone sleep deprived all the time, instead of just adjusting those schedules to let people get enough sleep.&lt;p&gt;While the worst cases of that are generally in the Navy (for example, entire ship crews running on 4 hours of a sleep a night as standard practice, serving as a major factor in those lethal collisions back in 2017), it&amp;#x27;s pretty common for Army grunts to get six hours of sleep a night or less while on deployment.</text></item></parent_chain></comment><story><title>Brain-cleaning sleeping cap gets US Army funding</title><url>https://newatlas.com/science/brain-cleaning-skullcap-sleep-glymphatic-system-us-army/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>javanscala</author><text>They actually have training &amp;#x2F; excercises within the Army (and I assume other branches), where they intentionally sleep deprive you while evaluating you on tasks.  It’s assumed there will be points in battle where you can’t sleep.  24hrs without sleep happened fairly often, but the longest training that I can recall with sleep deprivation lasted 72 hours.  Most people did manage to “sleep” during that time, but 20 minutes at most, as the cadence of the tasks was designed that you couldn’t sleep at all.  I must admit though my platoon could mostly do our jobs in our sleep because the actions had been drilled into us and we had done them so many times with little or no sleep.</text><parent_chain><item><author>uh_uh</author><text>Why do they do this?</text></item><item><author>crooked-v</author><text>I have to wonder how much of this support is the military trying to find a technological workaround so they can keep using schedules that intentionally leave everyone sleep deprived all the time, instead of just adjusting those schedules to let people get enough sleep.&lt;p&gt;While the worst cases of that are generally in the Navy (for example, entire ship crews running on 4 hours of a sleep a night as standard practice, serving as a major factor in those lethal collisions back in 2017), it&amp;#x27;s pretty common for Army grunts to get six hours of sleep a night or less while on deployment.</text></item></parent_chain></comment><story><title>Brain-cleaning sleeping cap gets US Army funding</title><url>https://newatlas.com/science/brain-cleaning-skullcap-sleep-glymphatic-system-us-army/</url></story>