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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8
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1answer
2k views

Does “not drinking water” help you sleep better?

Recently I had been seeing some websites that suggest not to drink anything before going to bed. One of the reasons is to prevent waking up feeling want to pee. And it disturbs your sleep. But I feel ...
27
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1answer
5k views

Do teddy bears help people go to sleep better?

There are so many kids in this world who go to sleep with teddy bears and dolls. It seems like they need these toys to go off to Dreamland. I just recently realised this because my own child, about ...
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2answers
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Can a hypnosis audiobook induce epileptic seizures?

I noticed a warning on a hypnosis/self-help audiobook that read as follows: Warning: This audiobook contains powerful techniques. Do not listen if you suffer from epilepsy. My inclination is ...
18
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3answers
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Is sleep training a form of neglect or harmful?

Some people claim that "crying it out" is harmful. For example, the article on PhD Parenting states that crying it out is harmful to a child. I've heard others suggest that it's neglectful. I expect ...
50
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3answers
9k views

Does the color temperature of a computer screen affect sleep patterns?

There's a little tool called f.lux that claims: During the day, computer screens look good — they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at ...
25
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1answer
14k views

If you put your hand in water while sleeping/drunk, will you pee yourself?

This is like an urban myth and a classic prank, but I never saw it in action. Supposedly if someone is passed out or sleeping, the contact with water will make him pee. Is this true? If true, why ...
13
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1answer
3k views

Does sleeping an average of 11 hours or more raise one's risk of brain-related disorders?

I am familiar with the effects of sleep deprivation and some of the harmful effects of oversleeping. However, I have also heard more than once that sleeping more than 10 hours on average, even for a ...
25
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2answers
3k views

Is it possible to induce a lucid dream?

I've seen some websites like this that guide you to lucid dreaming, but still wondering is this just a myth? I tried to search for Lucid Dream but there seems like no result about people who sharing ...
17
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1answer
6k views

Is it impossible for a human to feel pain in a dream?

I am absolutely sure that humans can feel emotions in a dream. I've experienced some of the strongest anxiety in my life during nightmares. Sometimes the emotions were strong enough to persist in the ...
6
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1answer
2k views

Playing music at night for babies/toddlers causes or contributes to ADD/ADHD

I've heard that playing music at night for babies and toddlers (i.e. children under 2 years old) can cause or contribute to Attention Deficit Disorder (ADD/ADHD) when they get older. Is there any ...
36
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1answer
28k views

Does eating just before sleeping cause nightmares?

In many cartoons and on Sesame Street there are many storylines where a character eats just before going to bed (usually pizza) and they end up having nightmares or very crazy vivid dreams. Normally ...
35
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2answers
5k views

Death by lack of sleep — is it possible?

I had an argument with a friend in college who claimed that it was possible to remain awake with little to no detrimental affects for an arbitrarily long period of time. I am wondering, has anybody ...
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4answers
7k views

Do you eat a certain number of spiders whilst you sleep?

Over the course of your life time, the average person eats X spider/insects/whatever whilst they are sleeping. X tends to vary according to who you ask. Is this just an urban legend?
24
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1answer
9k views

How effective is melatonin for aiding with sleep difficulty?

From Wikipedia: Taken 30 to 90 minutes before bedtime, melatonin supplementation acts as a mild hypnotic. It causes melatonin levels in the blood to rise earlier than the brain's own production ...
19
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2answers
2k views

Learning while you are sleeping

Just to clarify, I'm not asking about Hypnopaedia, but about using a lucid dream as a training/rehearsal stage. The Lucidity Institue claims: ... many people use lucid dreaming to rehearse for ...
12
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3answers
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Do “blue light therapy” systems help with sleeping disorders?

I've seen blue light therapy systems which just look like a bunch of LED blue lights being sold online and in stores. They claim to help with sleeping disorders and jet lag. How are they supposed to ...
16
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1answer
839 views

Are we supposed to keep a 24 hour rest/wake cycle?

I find it nearly impossible to keep a 24 hour day cycle and the developed world have been structured into the 8 hour work day where you have: Eight hours labour, Eight hours recreation, Eight ...
86
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2answers
21k views

Does polyphasic sleep work? Does it have long-term or short-term side effects?

Cutting sleep down to 6, or 4, or 2 hours per day sounds fantastic. It also sounds like something that should have evolved naturally if it were possible. From the Polyphasic Society: Humans are ...
25
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1answer
47k views

Is there a risk of drowning if you fall asleep in the bath?

Are there any documented events of people drowning in slippery baths after falling asleep? I've tried to Google it but wasn't able to find anything. Probably just used wrong terms, or maybe there ...