Sleep study in both animals and humans has brought extremely important information on the creation of certain sleeping patterns and schemes that often vary according to age and even existential changes. Moreover, special psychological research has revealed that there is a connection between behavior and sleeping patterns as well. Thus, a sleep study of the positions which the body assumes in the night trance indicate how the person relates with the world, other fellow human beings and life in general. For instance, a person who sleeps on the belly is considered not to care too much about the opinion the others make about oneself.
Someone who sleeps on one side is considered as needing a lot of affection and lots of love, since this sleeping pattern resembles the baby's position in the womb. Last but not least, the same sleep study indicates that those people who sleep on the back are open-minded, generous and altruist. Or if we consider the sleeping habits one develops according to age, we'll be surprised to find out how much we change over the years. Thus, it is well-known that the elderly usually sleep on their back, and less in other positions that require too much movement; yet, such conditions are developed in time due to the decreased body mobility.
Any sleep study that is written for the average reader is a door open to understanding the unknown behavior we manifest at night. For instance, there are periods of time when we sleep quietly without any dreams at all, but they alternate with more intense moments when the brain functions intensely. When one tries to understand the mechanisms that trigger the trance as explained in a sleep study, he or she needs to learn how a certain factor changes the healthy attributes of normal sleep. Insomnia, for instance, appears only when a link fails to function properly in the chain.
In case you suffer from insomnia, you cannot rely on one sleep study or another in order to self-diagnose; a professional medical opinion is required on the matter to see what the causes are and how to eliminate the discomfort. This is absolutely critical since, insomnia ranges from temporary to chronic states, and in case there is a depression or more serious problem underlying it, prompt intervention and treatment prevents further deterioration of the condition. Yet, besides the doctor's recommendations, one is free to research as much as one likes in order to better cope with the situation!