<p>According to Giulio Tononi,"consciousness is what goes away when you fall into a dreamless sleep,” he explained that  "once a person goes into dreamless sleep, there is no experience, no perception of surroundings or the environment; there are no memories of the past or the future or even the present. It is thus at this point that everything disappears, which corresponds to consciousness “going away.”" [1]
You can look up his integrated information theory of consciousness [2]</p>

<ol>
<li>Tononi G, Edelman GM: Consciousness and complexity. Science. 1998, 282 (5395): 1846-1851. 10.1126/science.282.5395.1846.</li>
<li>Tononi, G. (2011). The integrated information theory of consciousness: an updated account. Archives italiennes de biologie, 150(2/3), 56-90.</li>
</ol>

CC BY-SA 4.0
2019-04-12T14:07:31.497Z
2019-04-12T14:07:31.497Z
Sophy
<p>According to </p>

<p><a href="https://en.wikipedia.org/wiki/Consciousness" rel="nofollow noreferrer">Consciouness</a></p>

<blockquote>
  <p>Consciousness is the state or quality of awareness or of being aware
  of an external object or something within oneself.</p>
</blockquote>

<p>I suppose dreaming qualifies as "being aware of an external object or something within oneself". But what about sleeping without dreaming. Is there supposedly consciousness in that state?</p>

<sleep><consciousness><dreams>
Is there consciouness when a person is sleeping and not dreaming?
Pablo
# Is there consciouness when a person is sleeping and not dreaming?

(Asked by: username_0 on 2019-04-12)

According to

[Consciouness](https://en.wikipedia.org/wiki/Consciousness)

> Consciousness is the state or quality of awareness or of being aware
> of an external object or something within oneself.

I suppose dreaming qualifies as "being aware of an external object or something within oneself". But what about sleeping without dreaming. Is there supposedly consciousness in that state?

**Tags:** sleep, consciousness, dreams


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## 1 answers

### Answer by username_1 on 2019-04-12. Score: 1 | Accepted answer

According to Giulio Tononi,"consciousness is what goes away when you fall into a dreamless sleep,” he explained that "once a person goes into dreamless sleep, there is no experience, no perception of surroundings or the environment; there are no memories of the past or the future or even the present. It is thus at this point that everything disappears, which corresponds to consciousness “going away.”" [1]
You can look up his integrated information theory of consciousness [2]

1. Tononi G, Edelman GM: Consciousness and complexity. Science. 1998, 282 (5395): 1846-1851. 10.1126/science.282.5395.1846.
2. Tononi, G. (2011). The integrated information theory of consciousness: an updated account. Archives italiennes de biologie, 150(2/3), 56-90.


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