For questions pertaining to the physiology and pathophysiology of sleep in humans and animals (e.g., sleep stages and their EEG patterns, sleep disturbances), along with psychological effects of sleep deprivation or fatigue.

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1answer
86 views

What is actually going on in your brain during a night terror?

I used to have really bad night terrors back in the day, where I would think I was floating and I would wake up and actually my vision would be very fuzzy - so I just want to know.. What is actually ...
2
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1answer
48 views

Is sleep time related to any other characteristic?

Some people say that smart people sleep less, other say that smart people sleep more. I also heard that Napoleon used to sleep 4h/day. Is sleep-time related to any other characteristics like ...
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1answer
50 views

Where to find historical dream activity data?

Is it just me, or are we dreaming less? Maybe it's the computer screens in our face all day. Maybe that's just what happens when we get older. I'm wondering if there's a resource of some kind to ...
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0answers
38 views

Why is it so difficult to recall dreams?

You see a dream and wake up during or after it and you remember the dream. Why is it so difficult to remember the dream in the morning, unless you write it down directly when woke up in the night?
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0answers
102 views

How to work on a research problem while sleeping?

Put it more formally, how to let your mind subconsciously work on a research problem when you are not actively thinking about it, e.g., during sleep, dinner, walking, or shower? Often I hear stories ...
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0answers
265 views

Is it true that drinking water before bed causes dreams to be more vivid?

Pavan Teja says on Psychtronics: Drink a lot of water. The more water you drink before bed, the more vivid your dreams. Is this true? Is this because I'm more alert not to, you know, and ...
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0answers
47 views

Is there difference between a memory of a dream and memory of waking experience?

I'm very interested in dreaming and have pretty good dream recall. This makes me able to recall and distinguish hundreds of experience within my memory and label them as "dreams". I'm trying to ...
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0answers
22 views

When falling asleep does one always start with NREM1?

After my admittedly short research I could not find information which states that if a person is disturbed while their sleeping, let's say in NREM3 phase of their sleep cycle, and wakes up and then ...
2
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1answer
154 views

How does the body experience free-fall during a hypnic jerk

Today I learned that a sudden jerk that you sometimes experience when you are just about to fall asleep due to a sense of free-fall or weightlessness is called a hypnic jerk. If, while sleeping, I ...
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1answer
35 views

Why past events reappear in dreams after a certain delay?

I know that Freud in his "Interpretation of dreams" provides a number of examples of events influencing dreams several days to several months after the event has occurred. For example, a person sees a ...
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1answer
27 views

Is there an easy way to tell whether I woke up during REM or non-REM sleep?

I wake up during the night. Is there an easy way to tell whether I've woken up during REM or non-REM sleep? One way could be to look up the time, calculate how long I've slept and then take into ...
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1answer
76 views

Is there a way to hasten recovery from sleep inertia?

Sleep inertia is a transitional state of lowered arousal occurring immediately after awakening from sleep and producing a temporary decrement in subsequent performance. (1) There is study ...
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0answers
12 views

Is brain more active when you do something in dream or wake up?

If brain activity is measured using EEG, is the brain more active when sleeping and dreaming of doing something or doing the same thing when wake up? Of course, if you do exercise (eg. running) when ...
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0answers
84 views

Is there a correlation between brain size and amount of sleep?

As far as we know, sleep seems to be the part of the daily cycle when executive functions are resting and memories are fortifying. Many, but not all, of the functions that become dysfunctional upon ...
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0answers
34 views

Effect of mid-day sleep on mood and performance

Is there any clearly identifiable reason explaining why sleeping during the day (for longer than 30 minutes) could produce lowered mood, difficulty in concentrating, overall decreased cognitive ...
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1answer
10 views

If sleeping is related to 'saving information' you've experience, is forgetting related to more energy?

So I was watching this youtube video (Only check 1:05 - 1:25) where it suggested we sleep because the brain needs rest to save/process all information we perceived throughout the day. I directly made ...
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0answers
11 views

Sleep deprivation effect on brain [duplicate]

I have a doubt reg. sleep deprivation. I did not sleep for past 24 hours(Because I did not feel sleepy),but slept the next day for full 8 hours. I do not feel the difference So my questions are, ...
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0answers
9 views

What is sleeplessness, and how is it different from being awake and being asleep?

I had a very bad night tonight. I went to bed extremely tired, but could not sleep. Unfinished business and other worries were circling in my mind. After what felt like maybe twenty minutes of tossing ...
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0answers
40 views

If the brain didn't age, would we need to sleep?

Imagine that human scientists developed a cure for brain aging - you go through genetic modification and now your brain is packed with hyperactive antioxidant enzymes, and as a result your brain never ...