Questions tagged [sleep]

Sleep is a naturally recurring state characterized by reduced or absent consciousness, relatively suspended sensory activity, and inactivity of nearly all voluntary muscles. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and is more easily reversible than being in hibernation or a coma.

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Can masturbation cure insomnia?

I've come across the claim that masturbation can cure insomnia at several places on the internet, including: Episode 1 of The Principles of Pleasure, which focuses on female orgasm. "We think ...
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4 votes
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is inclined bed therapy real?

I have discovered "Inclined Bed Therapy" They claim is very beneficial Is this real therapy? Why are all beds flat (conspiracy)? Here some claims for the IBT sleep psychologist, ...
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15 votes
2 answers
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Is eating and then going to sleep bad for health?

It is common to hear elderly in Portugal saying that dining and then going to sleep has a bad impact on one's health (apparently it is not only in Portugal). From a National Institute of Health ncbi....
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7 votes
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Can mattresses relieve scoliosis pain?

I found a lot of reviews of mattresses that claim they can help with back pain from scoliosis. I was really surprised because I haven't heard about them before. Here are some examples: ...
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38 votes
1 answer
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Are blue light filters, not blue lights, on phones and computer screens harmful to sleep?

These existing questions ask whether the blue lights, not blue light filters, from computer screens affect sleep: Does blue light from screens (phone, computer, TV) before sleep affect sleep? Does ...
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Can you truly fall asleep in two minutes with this military technique?

The military secret to falling asleep in two minutes | The Independent. The trick is reportedly used by the US army to help them fall asleep in situations that are less than peaceful, such as on ...
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10 votes
2 answers
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Does having your bedroom door closed while sleeping improve fire safety?

The UL (formerly Underwriter Laboratories) has a Fire Safety Research Institute (FSRI) that claims that sleeping with the bedroom door closed reduces the risk of being killed in a fire: UL FSRI ...
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9 votes
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Can you increase sleep quality by removing static electricity from the body with a specialized mattress/quilt?

The claim is: static electricity builds up during the day and prevents you from sleeping well at night, which can be circumvented by using a specialized mattress/quilt that dissipates the static ...
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3 votes
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Does blue light from screens (phone, computer, TV) before sleep affect sleep? [duplicate]

One claim I come across again and again and again in some form is this: Blue light from screens before sleep affects the production of melatonin in your body therefore it's harder to fall asleep (...
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2 votes
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Is sleep "defragmentation" for your brain?

I've seem several articles claiming that sleep is akin to the usual proccess of hard drive defragmentation, however for your brain. This process allegedly prunes synapses/memories and reconsolidate ...
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Do water pillows improve sleep quality?

The manufacturer of a water-filled pillow claims: In a published study from The Johns Hopkins School of Medicine, The Water Pillow by Mediflow was clinically shown to improve quality of sleep and ...
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10 votes
1 answer
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Does Earthing Therapy reduce cortisol secretion and help sleep?

Earthing Therapy involves "earthing" and "grounding" the human body by electrically connecting it to the ground. In the book Sleep Smarter, by Shawn Stevenson, he claims there is research that says ...
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20 votes
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"Relax and Win" - Classified military method to fall asleep quick?

The book Relax and Win by Bud Winter (a track coach) claims to reveal relaxation techniques developed by him and others for the US military: Based on mental and physical training methods used to ...
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Are people who sleep on the left side of the bed happier in their job?

According to a 2011 study by hotel chain Premier Inn, people who sleep on the left side are better off than those who sleep on the right side. One of the examples they give: In fact, 31% of ‘...
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Does your wifi router mess up your melatonin which messes up your sleep? [duplicate]

From https://www.kitguru.net/channel/generaltech/larry-alton/3-reasons-to-upgrade-your-network-with-cat6a-ethernet-cables/ If you’re one of thousands of people who suffer from EMF sensitivity, ...
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6 votes
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Does the "4-7-8" method help to fall asleep faster?

The "4-7-8" technique involves controlling your breath for a brief time to encourage falling to sleep faster. Each number consists of the period of seconds you spend during a certain part of ...
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2 votes
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Does orientation relative to the Earth's magnetic poles affect humans during sleep? [duplicate]

So generally in India they told you, you should not put your head to the north and sleep. [...] Suppose you are anemic and you go to your doctor what does your doctor prescribe for you? Iron. ...
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10 votes
1 answer
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Is it healthy to sleep with the head under the blanket?

According to g9sleeptight.com (and many other websites), sleeping with the head under the blanket increases the risk of suffocation can trigger sleep apnea can cause brain damage stating "some ...
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Does it take 30 seconds for a person to consciously realize that they're awake?

Source: "You actually have to be awake for a full 30 seconds to consciously realize that you are awake, but the body falls right back into sleep immediately after it wakes up to take a breath," ...
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7 votes
3 answers
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Do ultra-heavy blankets reduce stress and anxiety?

There's some buzz on news sites that seems to come from an article here: Scientists Assert That Ultra-Heavy Blankets Actually Reduce Stress and Anxiety which I think is connected to a Kickstarter ...
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Is the microorganism buildup in bedsheets harmful?

According to business insider, the New York University microbiologist Philip Tierno claims that bedsheets should be washed once a week and that mattresses should be changed more frequently because ...
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14 votes
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Is charging your phone overnight dangerous?

There are a number of news stories like this (in Russian) of an iPhone 5 burning up and causing a fire while charging overnight, seriously damaging the owner. There's another story going around of a ...
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60 votes
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Do teenagers fall asleep and rise up later than kids or adults for biological reasons?

In a TED talk "Why school should start later for teens", Wendy Toxel made an assertion that teenagers naturally fall asleep and rise up a couple of hours later than children OR adults (related to ...
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Do we need less sleep when the Sun is shining at night?

I always bring black plastic sheets with me when going North in the Summer to make my bedroom pitch dark, but the local people seem to not be bothered by the Sun at night. However, they do say that ...
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Does Lee Hadwin have "artistic ability" only when asleep?

The artist Lee Hadwin claims that he paints only when he is asleep and has no artistic talent when he is awake. A dailymail article about his gallery opening: An artist who has no artistic ability ...
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17 votes
1 answer
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Can anyone function on just 2 hours sleep per night?

This infographic advert describes the sleeping habits of a few well-known people: A few of them were claimed to have gotten by with extremely little sleep. For example: Tesla, 2 hours of sleep per ...
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29 votes
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Has "the destruction of the space shuttle Challenger... been linked to insufficient sleep"?

According to Daylight Savings Time and Traffic Accidents N Engl J Med 1996; 334:924-925 Major disasters, including the nuclear accident at Chernobyl, the Exxon Valdez oil spill, and the destruction ...
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Does radiation from sleeping next to your smartphone affect your brain patterns negatively?

Vivian Giang writes in Sleep Drives Metabolite Clearance from the Adult Brain: In fact, as part of Swart’s Neuroscience For Leadership class at MIT in April, she discussed the serious health ...
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6 votes
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Does Daylight Savings Time lead to an increase in car accidents and work related injuries the week afterwards?

In the segment Daylight Saving Time - How Is This Still A Thing? of John Oliver's Last Week Tonight it is said: Studies say that there's an increase in car accidents and work related injuries the ...
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2 votes
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Is it possible for a working person remain healthy just by 4 hours sleep a day? [closed]

Due to work pressure, I'm feeling that 24 hours is not enough to finish it in deadline. I've tried it for two days but felt impossible. I'd heard that successful person do not sleep long. I don't know ...
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11 votes
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Can audio played during REM sleep improve recall?

I was reading about sleep-learning - for example of the type depicted in The Simpsons episode, Bart's Friend Falls in Love: Homer orders a subliminal cassette tape to help him lose weight, but is ...
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2 votes
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Does a boxspring offer advantages over slats? [closed]

Does a boxspring under a mattress offer advantages over flexible slats? I can imagine a boxspring might seem more luxurious since it feels more soft, but that doesn't mean that it supports your body ...
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12 votes
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Does drinking water right after waking up reduce sleepiness?

Related but with no answers (at the time of this posting). Several websites and "health tips" blogs recommend doing this after waking up to reduce sleepiness after waking up. (references, google ...
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5 votes
1 answer
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Will sleep deprivation kill you faster than starvation?

This article from Time Motto makes the claim that sleep deprivation will result in faster death than starvation. In the long run, work is not more important than sleep. If you aren’t sure how ...
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2 votes
1 answer
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Can alcohol trigger insomnia?

Refer to the article How a glass of wine before bed wreaks havoc with your sleep: Alcohol disrupts body's internal timer and triggers insomnia: While glass of wine at night may help you drop off, ...
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7 votes
1 answer
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Do sleeping pills have a comparable mortality hazard ratio as cigarette smoking?

On Seth Robert's blog, Seth published an email discussing sleeping pills from Daniel Kripke saying: Imagine my surprise when I observed that sleeping pill use was associated with a comparable ...
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11 votes
2 answers
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Could this monk have lived nine days without food, water and sleep?

All over the news this week in Japan has been this story about a monk: A Buddhist monk on Wednesday finished a grueling nine-day ritual of not eating, drinking, or sleeping as he chanted sutras 100,...
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24 votes
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Are there people who do not sleep at all?

There have been reports about people who didn't sleep at all for many years, see e.g. this newspaper article. The case of Paul Kern is the subject of this Wikipedia article, and this newspaper article....
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16 votes
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Does sleeping on your left side improve digestion?

Does sleeping on the left side improve digestion? This article claims that it does, is there any truth to it? http://www.healthylifetricks.com/this-is-why-you-should-be-sleeping-on-your-left-side/ ...
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3 votes
1 answer
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Does the hops in beer cause sleepiness?

Does the hops in beer have (a consistent and noticeable) effect on drowsiness? Whenever I drink a beer, I get so sleepy that I can barely keep my eyes open. Is it the hops? It can't be the just ...
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11 votes
1 answer
994 views

Does eating dark chocolate eliminate night terrors?

In answer to a question on Parenting.SE about helping a child cope with night terrors, a user posted: Here's what you do For the little guy. For his night terrors give him 1 to 2 small square of ...
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Does sleeping in a cold room reduce the risk of diabetes?

According to Elite Daily, there may be some health benefits to sleeping in a room at between 60-67°F (15-19°C) In particular, they cite Temperature-acclimated brown adipose tissue modulates insulin ...
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4 votes
1 answer
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Do women need more sleep than men?

The claim is that women need more sleep than men because they do more multi-tasking during the day. http://www.dailymail.co.uk/health/article-2528920/Women-DO-need-sleep-men-Multi-tasking-means-...
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16 votes
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Should you regularly replace your pillow?

According to an article in the Guardian: Out of 2,200 men and women, only 18% knew they should replace their pillows every two years. The average person uses the same pillow for three years and two ...
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1 vote
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How did people sleep in the past? [duplicate]

Recently I was told by a friend: People used to sleep in two shifts, one from 8pm to midnight, then wake up for an hour or two, before taking a second sleep shift from 2am to 6am. He claims that ...
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5 votes
2 answers
357 views

Do 7 to 12 year olds need 10 to 11 hours of sleep per day?

WebMD: 7-12 Years Old: 10 - 11 hours per day At these ages, with social, school, and family activities, bedtimes gradually become later and later, with most 12-years-olds going to bed at about 9 p.m. ...
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19 votes
4 answers
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While driving (or otherwise), do people experience microsleep and are unaware that it happened?

From Wikipedia (emphasis mine): When experiencing microsleeps while driving an automobile, from the perspective of the driver, he or she drives a car, and then suddenly realizes that several seconds ...
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15 votes
1 answer
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Does white noise improve sleep quality?

I've heard it claimed that white noise improves sleep quality, and anecdotally I've found it to sometimes be true. There are many white noise devices targeted at improving sleep, but research on the ...
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8 votes
0 answers
394 views

Do salt lamps produce negative ions?

Do claims that Himalayan Salt Lamps produce negative ions when lit with an incandescent bulb have any science to back it up?
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17 votes
1 answer
1k views

Do expensive mattresses give better quality of sleep?

I'm currently shopping for a mattress, and prices range from $200-$2000+. My current mattress is a $500 IKEA memory foam mattress, and I feel like I get a good night's sleep, but if it could be shown ...
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