Questions tagged [sleep]
For questions about the state most animals enter for several hours every night to recharge their minds and bodies.
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What is the or some of the surefire ways to safeguard against Rostazas for sleeping/lesser activity if one is unarmed or lightly armed? [closed]
So I have this story about humans getting teleported into a world where everything is so big that a 6 foot man is equivalent to an inch. It should be noted that it is pretty Earthlike in terms of ...
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If the Moon started emitting light, how would it affect human sleep/wake cycles?
I'm working on a sci-fi setting, and things start when the Moon starts emitting a unique type of light.
Things to note
The light being emitted by the Moon doesn't produce heat. Things are getting ...
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What kinds of damage would narcolepsy do if it was made to be infectious
In my short story I have a character that has access to gene editing. They want to cancel work and school with another pandemic however this character does not want to kill or make people suffer with ...
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Would hotels/motels/hostels serve a purpose when everyone has a magic bedroom they can teleport to? [closed]
In my modern fantasy novel, there is a species of people called the Torus. The Torus are blue-skinned humanoids who suffer from dyslexia and dyscalculia. This makes it difficult for them to perform ...
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Could a species that doesn't sleep invent technology? [closed]
Could a species that does not naturally sleep invent complex technologies as humans have?
Sleep is important to processing information, and high technology evidently requires much more information ...
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Would merfolk need beds?
The merfolk are fully marine creatures with a mix of human and piscine traits. The culture in question is demersal, and constructs cities and towns upon the sea-floor. The merfolk all have a finned ...
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How could politicians protect themselves from hypnosis?
In my world, hypnotism is both powerful and reliable. With a few tools and a lot of suggestions, it is possible for trained hypnotists to put people in a trance-like state. While in this state, the ...
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How would short nights affect human life?
My world is a flat disc, with a sun orbiting around it, and a stationary moon in its center whose shadow simulates nighttime.
Due to this, the central and outer regions experience a state of perpetual ...
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What perk only benefits users who spent more than a decade in cryonic sleep? [closed]
People are put into a suspended animated state using a cryonic sleep chamber, their brains neither are in deep sleep nor flatline.
Since subjects do not feel anything throughout the entire process, I ...
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How to estimate size of ketamin dose to sedate a T. rex.?
To mark the anniversary of our company we have decided to introduce to our VIP guests a once in a lifetime opportunity to get intimate with the dinosaurs, we will put the animal to sleep so the guests ...
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How would sleep work on a tidally locked planet?
For this scenario, imagine your classical habitable tidally locked planet: hot desert on one side, frigid wasteland on the other, and the only thing that is good is in the twilight zone.
Now, assume ...
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What effects would someone undergo who doesn't sleep for 3 weeks?
I am writing a story about a girl who travels to another world when she sleeps on earth, and travels back to earth when sleeping in the other world. Her mind never sleeps. When she is asleep on either ...
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What is the best place to sleep health-wise inside an M1 Abrams tank?
There are several characters crossing an NBC-laden apocalyptic landscape in an M1A1 Abrams tank. For various reasons irrelevant to the scope of this question, they cannot leave to set up some kind of ...
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Reduced sleep for cyborgs
In a world where humans have 'evolved' to the point where their bodies are mostly electronics, save for the brain and spine, would they still need the standard seven hours of sleep to function ...
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Sleep deprivation torture methodologies [closed]
Scenario: One of the main protagonists of my fictional story (set in the 21st century) has been captured by a certain intelligence agency which is going to use sleep deprivation in order to induce ...
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Options to keep someone awake against their will? [closed]
I already asked this on Medicine SE and Chemistry SE, but both said this question is dangerous and they can't answer it, and on Chemistry I got a suggestion to ask this here again.
It is for a RPG ...
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Sleep Cycles on very fast and very slow rotating worlds Part 2
This is the same as my previous question, Sleep Cycles on very fast and very slow rotating worlds Part 1, but this part is for how humans settling these world would alter their sleep cycles!
I would ...
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Sleep Cycles on very fast and very slow rotating worlds Part 1
Related previous question.
How would sleep cycles work on planets with day-night cycles greater than 48 hours or less than 6 hours? This part is primarily for wildlife that evolved there.
Native ...
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Sleeping in a world without night
I'm working on a game world where light (Lux) gives literal definition to all matter. Anything in complete shadow (Umbra) is without definition and completely amorphous.
At the center of the world, ...
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Random body shuffle every night—can we still function?
Imagine a world where every time you wake up you wake up in a randomly selected body from among the bodies that were asleep at that time. There are some limits—the body should be in at most a roughly ...
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What is the optimal sleep scheduling strategies for a 24h sleep cycle on a 48h day planet?
I have a planet with days that is exactly two times longer than in real world. I'm trying to find out the best time to sleep if people still need as much sleep as they do even if they are on a planet ...
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How can an evil spirit take control of a human body during REM sleep?
I have a friend who is a really nice guy. The problem is that he was born as a half demon. While he looks completely normal, he possesses a spirit inside him called "Amon". This being forces him to ...
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Ways other than sleep to restore cells/neurons
So I have a planet with multiple species on it. My planet is tidally locked. I know it is generally thought a tidally locked planet couldn't harbor life because of the extreme temperatures, but my ...
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2 weeks day, 2 weeks night, how would the sleeping pattern of the planet's dominant species work with a 28 'day' Day?
Okay, so I have this binary planet system. The main planet a bit bigger than earth with a size appropriate moon-planet. Both are habitable and with a humanoid species that evolved there.
But, I know ...
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How could the invention of cheap stasis pods affect people? [closed]
I am interested in the idea of creating a story around a world where cheap stasis pods exist. So stasis costs would be a fraction of normal living costs.
So people that are poor could choose to spend ...
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Might it be possible to work while sleeping without significant long term health complications?
One aspect of the world I'm conceptualizing is that some employees might opt to work while in a medically induced coma, or work at night while they sleep by using brain implants that induce a type of ...
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How would a humanoid need to change to sleep upside-down?
Related: What parts of the human body would be negatively affected by sleeping upside down?
I have a character (a regular human in structure) who, for his own reasons, decides to act bat-like and ...
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What parts of the human body would be negatively affected by sleeping upside-down?
I have a character (who is human) who, for his own reasons, decides to act bat-like and sleep hanging upside-down.
Handwave the feet/attachment issue.
Which parts of a human body would be affected ...
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How long do slaves work each day?
In my imaginary world the main character's country has fallen and they now live as slaves. The conquering country is cruel, and treat the slaves so badly that basically everything that they do to the ...
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1 in 10,000 people no longer need to sleep. Would different laws need to apply to them? [closed]
Tomorrow, 0.01% of the world's population will wake up and no longer need to sleep. (Some of these Awakened people may then be incapable of sleeping any more, but that's incidental). To give a rough ...
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Could Alice's hair send people to sleep without just knocking them out?
So recently I asked this question about Alice, the tips of whose hairs (body and head hairs) could (in that question, not this question) paralyze or poison people.
I thought: what if her hairs only ...
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How would a superhero who needs to fall asleep to use his powers fall asleep during battle?
The Dreamer (a.k.a. The Sleepy Psychic by his teammates and enemies alike) has telepathic powers. The problem is that, while extremely useful, he can only use them whilst sleeping. My question is, how ...
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Would it be possible to make a container that induces sleep?
I had a dream the other night about an alien invasion. In this dream, I was one of the first people to be aware that the aliens had landed, and of course I wanted to warn others. The aliens were ...
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Realistic underground shelters for long time hibernation for mainly humans
Short variant of question:
I have few big natural caves (really big).
I want to transform it into shelters capable of keeping ~2.000.000 humans in hibernation, sleep, suspended animation or other ...
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Alternative to cryogenic sleep / deep hibernation?
In a not-so-distant future, around 2300, mankind finally find a way to keep the body intact over hundred of years, allowing a limited number of humans to travel over hundreds of years in order to join ...
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An animal that puts its prey to sleep
Hunting is dangerous; even for the predator, hunting can result in death. There have been countless example where a predator was killed by what was supposed to be prey. Animals have evolved many ways ...
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Trying to make a dreamscape/dreamworld with real-world inspirations...? [closed]
I am trying to craft a story around the idea that, when we dream, we actually access another indeterminable plane of existence, a kind of repository into which the dreams and thoughts of all living ...
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Effects of totally sleeping vs. just closing your eyes [closed]
Will totally sleeping (closed eyes, unconscious) have the same effect physically with just lying in bed and just closing your eyes even if you're still conscious?
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What if our planet had only daytime?
What if our planet was always lit so that there would be no nighttime? Assume that the scenario is like this, where A is the planet and B and ABb are the stars. And they are all aligned so that it ...
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Effect of 32 hour days?
What would the effect on humans be of a 32 hour day rather than 24 hours? It would be a pretty much even split of 16 hour days, 16 hour nights. The people would have previously been on a spaceship for ...
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The Sleepless City
Basic Question: What about happen if scientists discovered a way to prevent or dramatically reduce our need for sleep?
Let's say we have a normal earth with current technology, but with one major ...
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What would cause a city to sleep during the day and work at night?
It's a sprawling city, similar to that of Whiterun (capital of Whiterun Hold in Skyrim) with about 1500 inhabitants. Assume medieval-level technology and weapons, and also assume that the city is ...
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Handling a Dream-Invader Prisoner
Our hapless friend –let us call her Alice – has a prisoner – Bob – and a problem.
Here's the situation: for reasons that are too long to detail here, she must bring the ...
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Can a sapient species evolve that needs little or no sleep?
Humans sleep more then nearly any other creature (true sleep, not low-activity like cats and sloths), and are some of the only true sapient species on earth. Many other intelligent, or nearly sapient,...
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Social effect of pill which defers need to sleep
Nobody knows why do we need to sleep. So, I am thinking of inventing handwavy pill, which "cures" our need to sleep. However, it does not cure it forever. If taken as prescribed, you can defer your ...
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How would we thrive on a planet whose rotational period is different than Earth's?
Here, atmospheric pressure/composition, temperature, and gravity won't be considered; let's assume that all of those are the same as on Earth.
Would we "rest/stay awake" however long or short it ...
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The end of sleep
In the year 2041, scientists have come up with a genetic modification that obviates the need for sleep in humans. The procedure is harmless, cheap, and has no harmful side effects. The result: you get ...
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Effect of longer day/night cycle on human sleeping patterns
So in a setting I'm developing, a moon orbits a gas giant once every four days. It naturally is tidally locked to the parent body. Halfway through the day part of the cycle there is a two hour solar ...
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If a species didn't sleep how else would they "recharge"?
Humans (and most animals) sleep. The reasons aren't really clear but most people believe:
We have to sleep because it is essential to maintaining normal levels
of cognitive skills such as speech, ...
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Sleeping on planets with very long days
Consider a planet where a day, that is to say the amount of time a specific (roughly equatorial) point is in sunlight is much longer than on earth. A humanoid race has evolved on this planet. You can ...
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