• shneancy@lemmy.world
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    2 days ago

    alright fuckers let’s go over this again (and spread the knowledge please, it baffles me how it’s apparently niche info)

    your sleep is on a cycle, each cycle is ~90 minutes, you need from 4 to 6 consecutive cycles to get a good night’s sleep, that’s 6 to 9h (how much you need depends on your body)

    now here’s the kicker - if you wake up at the end or the beginning of a sleep cycle, which is when the lightest phase of sleep occurs - you’ll feel nice and refreshed.

    but if you wake up in the middle - during the deepest phase of your sleep cycle - you’ll feel like a fucking zombie and are quite likely to promptly turn off your alarm & go back to sleep and not even register that action as a memory because most of your brain is still asleep

    this is also why you can’t really have a 40 min nap that leaves you refreshed, you can either have a refreshing <20min nap or a refreshing ~90min nap, anything inbetween will make you feel more tired as your mind now has to wake itself up all the way from deep sleep

    so yeah, sleep in ~90min increments, my personal sweet spot is 7:30h

    • Mr_Dr_Oink@lemmy.world
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      16 hours ago

      There are apps that can work this out for you

      So either i say im going to sleep “now” and it tells me all the times that will align with light sleep and i can choose one to set an alarm for. (It even accounts for the average time it takes people to fall asleep)

      Or i can say i want to be up at X time, and it tells me the best times to put my head on the pillow (phone off and eyes closed actually trying to sleep)

      Sometimes it works out better for me to get slightly less or more sleep if it means waking during light sleep.

  • lurch (he/him)@sh.itjust.works
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    2 days ago

    you need 7h or more of sleep regularly or you’ll get neural damage in the long run. i’m talking tinnitus, spasms, halluzinations, etc. a few days less per month won’t be a problem

      • lurch (he/him)@sh.itjust.works
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        2 days ago

        to some degree, yes. like hallucinations or eye twitching will usuallly disappear after one or two nights of 7+ hours of sleep. tinnitus can take several days to disappear.

        • Sylvartas@lemmy.world
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          2 days ago

          Good to know. I definitely had some minor auditory hallucinations or spasms come and go depending on how badly I managed my sleep schedule and I never really thought about that. I think the tinnitus is mostly actual physical damages because I wanted to rawdog some metal concerts when I was younger though.

    • Natanox@discuss.tchncs.de
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      17 hours ago

      for me it’s 2 consecutive “nights” of 17 hours. That way I’ll get about 3 to 4 hours of actual quality awakeness. Doesn’t work always though, sometimes I can’t fall asleep enough.

      Anything below that is always crap, no matter what.

    • unyons@feddit.org
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      2 days ago

      My sweetspot is 5.5-6.5 hrs. (+caffine) I’m slightly on the ADHD spectrum, so the mix of bodily stress hormones and deep sleep is just right.

      But that’s just me. Everyone is different.

  • hark@lemmy.world
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    2 days ago

    If I’m hitting 10 hours of sleep, it’s generally because I’ve been missing out on sleep, though I generally feel great after that 10 hours. If I get enough days in a row where I can sleep uninterrupted, then I seem to settle at around 8 hours.

    • Trainguyrom@reddthat.com
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      2 days ago

      I’ve found my body is similar. Sweet spot for me seems to be about 7 hours consistently or a mix of 6s and 9s as they roll in.

      I’ve also learned that I can do 6 hours for about 3 nights in a row and no more than that.

      Whenever my kids let me sleep like a sane human I might become more consistent with my sleep

  • TriflingToad@sh.itjust.works
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    2 days ago

    5.5-7 hours in weekdays, 11 on Friday, then (assuming I have work) 7 on Sunday
    Here’s my yearly sleep since I got my watch

    Here’s my weekly