Sleep cycle calculator age

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  • When should i go to sleep calculator
  • Sleep cycle calculator...

    Sleep Calculator

    Sleep Cycle Calculator

    Use this calculator to compute what time to go to bed or get up to wake up refreshed between sleep cycles. Click the settings to change sleep cycle length or the time you take to fall asleep for your specific situation.


    Sleep Length Calculator

    Use this calculator to compute what time to wake up or go to bed to get a given number of hours of sleep.

    Scientifically best time to sleep and wake up

  • What time should i go to bed if i wake up at 7am
  • Sleep cycle calculator
  • What time should i go to bed if i wake up at 6
  • What time should i go to bed if i wake up at 5
  • Use the Hours Calculator if you would like to find out the number of hours slept when you know what times you woke up and went to bed. When counting, please deduct the time taken to fall asleep, which can be very different for different people.


    Sleep describes a recurring state in which the body and mind are at rest, reducing muscle activity, interaction with surroundings, and the ability to react to stimuli.

    The ability to react to stimuli is one of the distinguishing factors between the states of sleep and wakefulness. For the purposes of this page, sleep will primarily be discussed as it relates to humans.

    Sleep cycles

    The sleep cycle can be defined as the oscillation between non-RE

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