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 ...
11
votes
3answers
927 views
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 ...
48
votes
1answer
8k 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. Has any serious research been done into ...
35
votes
4answers
3k 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?
20
votes
2answers
2k 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 ...
10
votes
0answers
340 views
Which position is healthiest for sleep?
If you believe the internet, there is no healthy way for you to sleep: front, back, side, fetal; they are all going to cause you problems like acid reflux, spinal problems, skin problems, problems ...
24
votes
0answers
13k views
Did Albert Einstein sleep 10-11 hours daily?
I heard many times that Albert Einstein needed a lot of sleep. For example, this BBC article claims that he typically needed eleven hours of sleep:
People's sleep needs can differ significantly.
...
21
votes
1answer
10k 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 ...
12
votes
1answer
2k 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 ...
11
votes
1answer
651 views
Is it dangerous to wake a sleepwalker?
Source
It seems to be a common belief that you should
never wake up a sleepwalker
From Wikipedia - Sleepwalking:
There are conflicting viewpoints on whether it is harmful to wake a ...
8
votes
2answers
3k views
Does putting a bar of soap under your mattress prevent leg cramps?
I've heard this claim several times from family members, and I was highly skeptical. Supposedly the mere presence of a bar of soap underneath the mattress can ward off leg cramps during the night. ...
11
votes
2answers
1k views
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 ...
10
votes
2answers
2k 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 ...
2
votes
2answers
560 views
False awakening or similar phenomenon [closed]
I'm trying to find information about the phenomenon: on the last second of the sleep a person experiences false awakening so when a person awake he accepts that false awakening as reality and it ...
