<p>It is a multifactorial question dependent or correlated with a large list of variables or factors that could be grouped into:</p>

<ul>
<li>Functions (mainly effects on neurotransmitters, also have been much studied the functions related to memory and learning).</li>
<li>Biological factors or bases: Indistinguishable from the previous section.</li>
<li>Sleep dysfunctions (terrors, somnambulism, somniloquies, nocturnal jactatio capitis, bruxism, epilepsy, mental retardation)</li>
<li>Disorders (initiation and maintenance disorders, apnea, myoclonus, restless legs syndrome, narcolepsy, hypersomnia, Kleine-Levin, Pickwick)</li>
<li>Patterns There are many sleep patterns.</li>
</ul>

<p>It is not so easy to distinguish between health and disease since some individuals are very well adapted to patterns, dysfunctions and even some disorders.
The general intelligence factor may influence further adaptation.
The weight of the weight factor will influence to a greater extent when it is an extreme weight (mainly if there is difficulty in the breathing).</p>

<p>There are many manuals that address both general topics related to sleep (International Classification of Sleep Disorders, ICSD, good general books can be found in any library of psychology faculties) and very specific research (search in psycinfo).</p>

<p>Recommended source: Buela-Casal, G. (Comps.) (1990). Avances en la investigación del sueño y sus trastornos. Siglo Veintiuno de España Editores.</p>

CC BY-SA 3.0
2017-05-19T04:43:51.467Z
It may prove useful to know the relevant factors just for most average individuals. I think I mean to "hack" sleep. But consistency seems more of an issue for most (than perfection) anyway...
adamaero
CC BY-SA 3.0
2017-05-16T12:36:22.827Z
2017-05-16T12:36:22.827Z
hexadecimal
<p>The National Sleep Foundation in the US, <a href="https://sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need" rel="nofollow noreferrer">released the results</a> of a world-class study that took more than two years of research to complete – an update to our most-cited guidelines on how much sleep you really need at each age. You can read the <a href="http://www.sleephealthjournal.org/article/S2352-7218(15)00015-7/pdf" rel="nofollow noreferrer">research paper</a> published in <em>Sleep Health</em>.</p>

<p>Basically, the required amount of sleep varies from person to person and the recommended amounts are different depending on the age of the person.</p>

<p><a href="https://i.sstatic.net/kwV7N.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/kwV7N.png" alt="Recommended sleep times chart"></a></p>

<h2>References</h2>

<p>Hirshkowitz, M. et al. (2015) National Sleep Foundation’s sleep time duration recommendations: methodology and results summary. <em>Sleep Health</em>, 1, pp. 40-43</p>

CC BY-SA 3.0
2017-05-17T17:22:57.820Z
2017-05-17T17:22:57.820Z
Chris Rogers
<p>I suppose that it is well-known that different people need different amounts of sleep. I read somewhere that most people need something between 7 and 8 hours each day, though some people need only 6 hours, and (for instance) I have two friends who only need 5 hours. </p>

<p>Q: Besides genetic factors, what determines a healthy individual's required amount of sleep?</p>

<p>For example: </p>

<ul>
<li><p>Is there a correlation between an individual's g factor and their required amount of sleep? </p></li>
<li><p>Is there a correlation between an individual's weight and their required amount of sleep?</p></li>
</ul>

<p>Note: I am not interested in findings related to infants or teenagers. </p>

<sleep>
What factors determine a healthy individual's required amount of sleep?
J. Doe
# What factors determine a healthy individual's required amount of sleep?

(Asked by: username_0 on 2016-10-12)

I suppose that it is well-known that different people need different amounts of sleep. I read somewhere that most people need something between 7 and 8 hours each day, though some people need only 6 hours, and (for instance) I have two friends who only need 5 hours.

Q: Besides genetic factors, what determines a healthy individual's required amount of sleep?

For example:

* Is there a correlation between an individual's g factor and their required amount of sleep?
* Is there a correlation between an individual's weight and their required amount of sleep?

Note: I am not interested in findings related to infants or teenagers.

**Tags:** sleep


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## 2 answers

### Answer by username_1 on 2017-05-16. Score: 2

It is a multifactorial question dependent or correlated with a large list of variables or factors that could be grouped into:

* Functions (mainly effects on neurotransmitters, also have been much studied the functions related to memory and learning).
* Biological factors or bases: Indistinguishable from the previous section.
* Sleep dysfunctions (terrors, somnambulism, somniloquies, nocturnal jactatio capitis, bruxism, epilepsy, mental retardation)
* Disorders (initiation and maintenance disorders, apnea, myoclonus, restless legs syndrome, narcolepsy, hypersomnia, Kleine-Levin, Pickwick)
* Patterns There are many sleep patterns.

It is not so easy to distinguish between health and disease since some individuals are very well adapted to patterns, dysfunctions and even some disorders.
The general intelligence factor may influence further adaptation.
The weight of the weight factor will influence to a greater extent when it is an extreme weight (mainly if there is difficulty in the breathing).

There are many manuals that address both general topics related to sleep (International Classification of Sleep Disorders, ICSD, good general books can be found in any library of psychology faculties) and very specific research (search in psycinfo).

Recommended source: Buela-Casal, G. (Comps.) (1990). Avances en la investigación del sueño y sus trastornos. Siglo Veintiuno de España Editores.

> **Comments:**
> **username_2**: It may prove useful to know the relevant factors just for most average individuals. I think I mean to "hack" sleep. But consistency seems more of an issue for most (than perfection) anyway...  

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### Answer by username_3 on 2017-05-17. Score: 1

The National Sleep Foundation in the US, [released the results](https://sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need) of a world-class study that took more than two years of research to complete – an update to our most-cited guidelines on how much sleep you really need at each age. You can read the [research paper](http://www.sleephealthjournal.org/article/S2352-7218(15)00015-7/pdf) published in *Sleep Health*.

Basically, the required amount of sleep varies from person to person and the recommended amounts are different depending on the age of the person.

[![Recommended sleep times chart](https://i.sstatic.net/kwV7N.png)](https://i.sstatic.net/kwV7N.png)

## References

Hirshkowitz, M. et al. (2015) National Sleep Foundation’s sleep time duration recommendations: methodology and results summary. *Sleep Health*, 1, pp. 40-43


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