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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479 views

Is there a risk to sleeping in a hammock long-term? [closed]

There seems to be very little research on long-term health or spine drawbacks to sleeping in a hammock (anything besides individuals informal blog-type posts). Just one study about sleeping in a ...
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174 views

Can I add around 10 years of wakeful time to my lifespan by practicing polyphasic sleep vs. an average Western lifespan? [duplicate]

I have read from various (low quality) sources that practicing polyphasic sleep would add around 10 years to my lifespan vs. an average Western lifespan. Polyphasic sleep refers to the practice of ...
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223 views

Can irregular sleeping hours cause developmental issues for the brain?

It seems to be a common belief (i.e. here) that in order for our brain to rest and grow properly, we need to have regular, maintained sleeping regimes. While there seems to be no doubt that sleeping ...
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744 views

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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1answer
756 views

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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1answer
285 views

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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286 views

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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379 views

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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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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563 views

Are any animals nocturnal? [closed]

Several animals are commonly considered to be 'nocturnal' by nature. Nocturnality is an animal behavior characterized by activity during the night and sleeping during the day. The common adjective ...
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1answer
453 views

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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1answer
618 views

Why does small amount of night time sleep makes a person more tired when he wakes up? [closed]

Assume that you go to sleep at 0:00 am and wake up at 3:00 am. Why do you feel more tired (compared to your tiredness at 23:59) when you wake up at 3:00 am? Why does sleep makes us more tired in this ...
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4k views

Does excessive menthol cause sleepiness?

Does over consumption of menthol cause sleepiness? I found no substantial sources either to suport or refute this argument. I have heard it from a few sources not perfectly reliable. I do know that ...
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363 views

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 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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168 views

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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97 views

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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146 views

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, ...