How do you know if you have insomnia? Insomnia is a condition which is specifically defined in  the DSMIV (the list of rules used to diagnose psychological illnesses). The current DSM version required the following conditions be met:

• For at least a month, the patient’s main complaint has been trouble going to sleep, trouble staying asleep, or feeling unrested.
• The insomnia causes daytime fatigue or impairs daytime functioning.
• The insomnia (or its daytime results) causes clinically important distress or impairs work, social, or personal functioning.
• Although it is serious enough to warrant clinical attention, the clinician believes that another Axis I or II disorder (such as Generalized Anxiety Disorder, Major Depressive Disorder, or Adjustment Disorder) causes it.
• Another sleep disorder (such as a parasomnia, Narcolepsy, or Breathing-Related Sleep Disorder) does not explain the symptoms better.
• The insomnia is not directly caused by a general medical condition or by the use of substances, including medications.

Editors Note:
If you're still in need of sleep, I recommend the Natural Sleep Aids - Sleep Quick Strips. These strips contains natural, totally safe, and PROVEN ingrediants that will let you get to sleep every night with ease. Free trial!

This is a question that is asked over and over again that is answered with another question – Do you feel tired when you wake up?
If you are consistently waking up tired, then you aren’t getting enough sleep. Ideally, waking up with no alarm (while not sleep deprived) is a good estimate as to how much sleep you need.

Try to following to try and establish how much sleep you need:
Go to sleep when you are tired and wake up with your alarm. You will probably feel groggy but that is to be expected. Continue to go to sleep as soon as you feel tired and eventually, your body will have a certain time that it feels tired compared to your alarm time. The difference is about how much sleep you need.

The amount of sleep depends upon the individual – genetics and daytime activities. It can range from 4 hours to 12 hours so don’t listen to people who say you should get X amount of hours of sleep per night.