[2018-08-28]
Ученые рассчитали благоприятное для здоровья количество сна [2018-10-03]
Sleep - Biohacker’s Handbook [2018-10-27]
eh, not that much useful stuff. [2018-10-27]
Sweet Dreams On A Hard Surface: The Ergonomics Of Sleep - Carolina Morning Designs™ [2018-10-27]
Throwing Out My Bed Woke Me Up – Personal Growth – Medium [2018-08-21]
JGWol comments on ELI5: Why does heat make you sleepy? [2019-04-23]
Hillel on Twitter: "After 24 hours awake, novice software devs lost half of their dev skills: https://t.co/o8DRiXkWwM Chronically getting less than 7 hours of sleep causes dramatic degradation on all mental tests: https://t.co/2XIDdvgHHQ People can’t tell when SD degrades their ability (ibid)." [2019-06-18]
https://vk.com/@kurilka.gutenberga-plohie-geny-plohoi-son
[2018-08-21]
Pillow Guide | JYSK [2018-11-26]
maxcap comments on IsItBullshit: Sleeping with a hard mattress is better than a soft one [2019-07-22]
N + 1 on Twitter: "Американские ученые, проведя метаанализ 13 работ, выяснили, что горячая (40–42 градуса Цельсия) ванна или душ перед сном помогает быстрее засыпать и спать дольше https://t.co/RQBcfWdW3q… https://t.co/hDI2bccrfj" [2020-01-31]
Rooms can be as bright as the outdoors | Hacker News [2020-09-17]
28 Hour Day [2020-08-17]
Not everyone needs 8 hours of sleep: new research
[2019-07-21]
ELI5: Why does blue light make it hard to sleep? : explainlikeimfive [2019-06-22]
ELI5: Why do I always wake up early after I drink alcohol? /r/explainlikeimfive [[alcohol]] [[sleep]][2021-02-09]
Anecdata: Have sleep apnea, so am interested in better sleep, and I’m hooked up … | Hacker News [2021-02-09]
Two innovations have revolutionized my life—CPAP and Sleepyhead. I volunteered … | Hacker News [[sleep]][2021-02-08]
Oura ring vs. Emfit QS (My detailed comparison) - What do you think? - Quantified Self / Sports, Physical Activity, and Fitness - Quantified Self Forum [[emfit]] [[oura]] [[sleep]][2018-08-06]
hmm, that could work given that I spontaneously wake up at 5am sometimes. However I need a bit more willpower to actually get up.unclear how to measure
[2018-08-26]
eh, doesn’t work really well. almost always 1Unclear how to measure I guess binary is easiest, but expect to correlate with wakeup time
[2018-08-26]
doesn’t work really well either, almost always 1I guess there could be an intermediate state… e.g. you remember some dreams, but forgot some. For now I’m marking these as 1,2
ok, since higher is better, let it be like:
4 – very alert, would not sleep
3 – TODO
2 – would sleep easily
1 – falling asleep
[2018-08-28]
Ученые рассчитали благоприятное для здоровья количество сна[2018-10-03]
Sleep - Biohacker’s Handbookhttps://biohackingbook.com/bonus-materials/sleep/
Biohacher's handbook
Upgrade yourself and unleash your inner potential
Teemu Arina / Jaakko Halmetoja / Olli Sovijärvi
[2018-10-27]
eh, not that much useful stuff.[2018-10-27]
Sweet Dreams On A Hard Surface: The Ergonomics Of Sleep - Carolina Morning Designs™https://zafu.net/sleep-therapy/sleepergonomics
[2018-10-27]
Throwing Out My Bed Woke Me Up – Personal Growth – Mediumhttps://medium.com/personal-growth/throwing-out-my-bed-woke-me-up-fa3c26b4c776
CREATED: [2018-02-01]
https://www.snpedia.com/index.php/Rs121912617
apparently on 23andme chip v5
https://www.reddit.com/r/sleep/comments/6hs1nk/i_have_the_mutated_dec2_gene_allowing_me_to_be_a/
[2018-10-27]
I think it should be irrelevant. no way it can make any actual difference to sleep qualitySo what’s the sweet spot for sleep-enhancing humidity? Between 30 and 50 percent is the ideal range in which the air is moist enough for easy breathing, but dry enough to not feel oppressive. To keep track of the relative humidity in your bedroom, purchase a device called a hygrometer sold at hardware stores and department stores (also built in to some humidifiers).
[2018-08-21]
JGWol comments on ELI5: Why does heat make you sleepy?Your blood vessels are going to expand when the ambient temperature increases, causing decreased blood pressure throughout your body.. This means less blood flow, especially to the brain. The benefit to this of course is your body can cool down.
Ever notice why class rooms are notorious for being cold? (at least mine were) It's because an ambient temperature of about 68 degrees is just enough that the body constricts the blood vessels of the body, increasing blood pressure to help maintain routine body temperature. The side effect of this is (you guessed it) increased blood flow through the brain, causing you to feel more focused and alert.
The greater effect of this can be seen in studying the climates of different cultures. One theory that's pretty popular (and I think might have some hint of selective bias, so work with me here), is that the reason many cultures from tropical regions never ascended to a high level of technological and social developments is because of the hot weather causing the people to be more inclined to settle. While those who lived in cold regions with harsh winters, were home to people who were more intelligent.
It makes sense when you consider the difficulty in trying to live through a harsh winter. You have to be patient, strong, and above all else, smart. A tropical climate is much more forgiving on the body in the long term, because it mimics the conditions of our own body. Pretty cool stuff in my opinion.
[2019-04-23]
Hillel on Twitter: "After 24 hours awake, novice software devs lost half of their dev skills: https://t.co/o8DRiXkWwM Chronically getting less than 7 hours of sleep causes dramatic degradation on all mental tests: https://t.co/2XIDdvgHHQ People can’t tell when SD degrades their ability (ibid)."<https://twitter.com/hillelogram/status/1119709868833820677 >
Chronically getting less than 7 hours of sleep causes dramatic degradation on all mental tests: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2656292/ …
People can't tell when SD degrades their ability (ibid).
https://m.vk.com/@obrazovach-uchenye-rasschitali-blagopriyatnoe-dlya-zdorovya-kolichestvo
It generates a sleep score which I find pretty useless cause it mostly correlates with sleep length (e.g. you could have a 9 hour sleep and wake up feeling terrible whereas the sleep score would be 100, or you could sleep for 5 hours and be fresh and energised and the score would be 50). I think the most useful feature is it tries to infer when you had deep/light/REM sleep, after couple of weeks I noticed I got a REM phase almost every days at 5 a.m., tried setting an alarm for 5 and after a while I managed to get used to be waking up
Back sleepers should sleep with a thinner pillow, although if they are sleeping on a very firm mattress they may find no pillow at all to be more comfortable.
[2019-06-18]
https://vk.com/@kurilka.gutenberga-plohie-geny-plohoi-sonhttp://neuronovosti.ru/plohie-geny-plohoj-son/
[2019-06-20]
eh, doesn’t look like they found any strong correlationsYour body has too many variables, and there are too many sleeping positions that dictate the qualities of a pillow.
In general, back sleepers need something with support for neck curvature. Some back sleepers don't use pillows, just a soft roll to keep the alignment right.
Key is keeping your neck aligned on the appropriate axis. -- which axis??
Buckwheat pillows are supportive, moldable, and cool. They're pretty cheap on Amazon (under $30) and last years and years if there's a pillow protector on them. Millet pillows are a similar idea, but slightly denser and warmer.
Sleeping on your back without a pillow changes your neck angle from its normal daily position. When standing, your neck also has a certain curve to it. If you sleep on your back, that curve is also distorted. To simulate the natural curve of the neck, researchers found that about 10cm of pillow is needed.
[2018-08-21]
Pillow Guide | JYSKhttps://jysk.co.uk/guide/pillow-guide
A pillow that provides the correct support is a key factor in getting the best night's sleep possible. At JYSK you'll find pillows in two different heights: low and high. When selecting the pillow's height, keep in mind that your ideal sleeping position is one in which your spinal column is completely straight. Your preferred sleeping position should determine which height you should select.
Do you prefer to sleep on your back? Then your pillow should be low with primary support under the neck. To suit this purpose an ergonomic special pillow in foam or natural latex is suitable. It provides additional support under the neck for optimal support.
[2020-09-05]
eh. I sleep with open windows all summer, probably doesn’t matter[2018-11-26]
maxcap comments on IsItBullshit: Sleeping with a hard mattress is better than a soft one It entirely depends on your predominant sleeping position. A hard mattress is awful for side sleepers:
1) your spine is misaligned (assuming your shoulder width > hip width). For a quick visual, get somebody to take a photo with you on your side, topless, on a hard floor. Since your shoulders are the widest part of your body, your spine has nowhere to go except to slope upwards.
2) pressure points on hips ands shoulders.
3) Because of point (1) above, your head is further away from the mattress than it should be, and to compensate for this error you need a really thick pillow. The trouble is, most people do not use a pillow that's thick enough, so you lose neck alignment in the opposite direction to the misalignment in point (1) above. Double trouble. Optimal = a softer mattress + skinny pillow.
Your body WILL compensate by tossing and turning to relieve those three problems.
Hard mattresses can be good for back sleepers. However, most people have tight hip flexors these days from 21st century life (sitting), and so raising your legs a bit can help improve comfort.
[2019-01-24]
huh that works pretty well actually..В исследовании, опубликованном в журнале Journal of Sleep Research, ученые пришли к выводу о том, что риск смерти не повышается у тех, кто спит в рабочие дни меньше пяти часов, но больше восьми — в выходные. При этом он возрастает в полтора раза у людей, пренебрегающих сном в выходные. Эти данные были получены в результате тестирования 38 тысяч шведов в течение 13 лет.
[2019-07-22]
N + 1 on Twitter: "Американские ученые, проведя метаанализ 13 работ, выяснили, что горячая (40–42 градуса Цельсия) ванна или душ перед сном помогает быстрее засыпать и спать дольше https://t.co/RQBcfWdW3q… https://t.co/hDI2bccrfj"<https://twitter.com/nplusodin/status/1153363362316791809 >
Американские ученые, проведя метаанализ 13 работ, выяснили, что горячая (40–42 градуса Цельсия) ванна или душ перед сном помогает быстрее засыпать и спать дольше
[2019-04-01]
[2019-04-01]
Mm okay apparently open mouth dries out saliva and bad for gum and teeth health
wonder how bad is mine then?
[2019-06-20]
eh, not very googlable[2019-06-20]
22 participants eyeroll[2020-09-05]
eh, don’t think sohmm. maybe try that? wonder if I could have sort of poly sleep one day per week?
Good sleep, good learning, good life
in context
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Good sleep, good learning, good life
in context
None
Good sleep, good learning, good life
in context
None
Matthew Walker’s "Why We Sleep" Is Riddled with Basic Scientific Errors - Alexey Guzey
in context
[2020-01-31]
Rooms can be as bright as the outdoors | Hacker Newshttps://news.ycombinator.com/item?id=21660718
benhurmarcel 62 days ago [-]
I also thought it was normal.
Once for a couple of weeks I worked and slept as I felt like it. I ended up doing ~30h days. It was the best I’ve ever felt while being quite productive.
Unfortunately it’s not an option to do that long term.
<https://twitter.com/RabbiODrugz/status/1317971528588447744 >
@RabbiODrugz: СЫР "СТИЛТОН"
Это не вполне наркотик в привычном понимании этого слова. Кайфа от него нет (кроме запаха потных ног, но это на любителя).
Однако отмечено, что 20 грамм Стилтона за полчаса до сна вызывают очень яркие и реалистичные сны у 75% мужчин и 85% женщин.
Причина неизвестна https://t.co/EjyGnVmymB
[2020-09-17]
28 Hour Daybut before that, try sleeping for a longer period while really following a normal schedule
maybe seems doable actually (see google doc)
go to bed at 5-ish on monday and then sleep 20/8.
only day when I sleep is friday (even that from 5 to 12, so ok)
[2020-08-17]
Not everyone needs 8 hours of sleep: new researchhttps://time.com/5876614/circadian-rhythm-study/
[2020-09-06]
eh, some interesting discussions in comments but nothing too actionable otherwise?I wonder how I could wind myself down before sleep.. I already tried reading books but not sure
Today we present a huge step forward in wearable research. sleep monitoring using earEEG with unprecedented accuracy.
I really believe that #eeg measured from the ear will have very valuable clinical uses.
<https://twitter.com/dphys/status/1195083374257483776 >
[2019-11-22]
Finally, 19/20 subjects found that the ear-EEG had little to no negative effect on their sleep[2019-07-21]
ELI5: Why does blue light make it hard to sleep? : explainlikeimfiveThere is basically no naturally occurring source of blue light aside from the sun. Our bodies adapted to start producing melatonin (a hormone that helps us sleep) only when we do not sense blue light
[2019-06-22]
ELI5: Why do I always wake up early after I drink alcohol? /r/explainlikeimfive [[alcohol]] [[sleep]]Alcohol is a depressant. Your body tries to counteract the depressant by releasing stimulants. Alcohol wins the race so you go to sleep. However, your body processes the alcohol out of your system and you are left with the (longer-lasting) stimulants, which is why you wake up earlier.
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