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Just like you need about eight glasses of water every day, you need on average eight hours of sleep. This all depends on you. If you are young, then it is normal to sleep up to 12 hours every night as younger people use much more energy, requiring more sleep.

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15y ago
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11y ago

Sleeping is divided into 4 stages(former 5).

  1. NREM stage 1
  2. NREM stage 2
  3. NREM stage 3(former stage 3 and 4)
  4. REM (stage 4, former stage 5)

Deep sleep or Slow-Wave Sleep is in stage 3.

Depending on your age the amount you are in every stage and total sleep time vary. A healthy adult will need 7-8 hours of sleep every night. While sleeping you will go through the stages like this:

1 - 2 - 3 - 2 - 4

5% - 25% - 20% - 25% - 25%

24m. - 2h. - 96m. - 2h. - 2h.

Deep Sleep is believed needed to contain new memories for the future. This is also the stage were your brain "reset" from the days tasks and duties.

NREM = None Rapid Eye Movement sleep

REM = Rapid Eye Movement sleep

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15y ago

you need at least 8 hours you need at least 8 hours

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Wiki User

12y ago

"You need an average of 7 hours of deep sleep a night. I have a two year old and haven't gotten that for 2 years. Loss of sleep can make you irritated, slow, and easily forgetful."

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Anonymous

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4y ago

3.5hrs

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Q: How much deep sleep do you need?
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You need 8 hours of sleep, and you have to be in deep sleep at 1-4 a.m.


What month do brown bears fall in to deep sleep?

Brown bears do not fall into a deep sleep. That is a false cartoon outlook on bears hibernating. Bears sleep nightly like humans, and do not need hibernation.


Is rem sleep deep?

3/13/2012 jhh: REM sleep is NOT deep sleep. In fact, it is the lightest stage of sleep. In order from awake to deep sleep: AWAKE, REM, LIGHT, DEEP. Deep sleep and REM sleep are the most important stages though. Light sleep doesn't do much for you. Deep replenishes your body, while REM replenishes your mind. Older answer (not accurate): Yes. It is the deeper form of sleep that we experience during our sleep cycle, rem sleep is where dreaming occurs But not the deepest sleep, which would be delta. That's where, unless your a mother and hear your baby cry, you are oblivious to your environment.


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How much sleep does a newborn baby need?

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What is the proper medical answer for how much sleep an adult need?

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Why we can need study in deep?

People awakened during deep sleep do not adjust immediately and often feel groggy. Eventually, your body will demand that the debt be repaid. We don't seem to adapt to getting less sleep than we need; while we may get used to it. Many studies make it clear that sleep deprivation is dangerous.