Sleep Matters: Negative Effects of Sleep Deprivation
Sleep deprivation is a very serious health crisis. You need to get at least seven hours of sleep nightly, though eight is the recommended amount.
Those who have insomnia are in a particularly tough position, as the time it takes them to fall asleep (if they sleep at all) takes away from the precious time they should be spending doing the activity.
You must be able to adequately go through all phases of sleep, including REM sleep and deep sleep, to stay healthy. Employing sleeping music is one technique you could try to calm down and get some rest.
If you are deprived of sleep, you could end up finding yourself dumbing down, becoming more prone to accidents, forgetful, having aged skin, etc.