There are several degrees of insomnia; these types have been identified clearly as transient, chronic and acute. Transient degree of insomnia lasts from the days to weeks. And it can cause by another disorder, due to changing in sleep environment, by sleep timing, stress or severe depression. Acute is inability of consistently sleep well for the periods between 3 to 6 months, while chronic insomnia is for year time, it can be caused by primary disorder or another disorder and its effects can vary to its cause.

Some peoples live with this disorder can see things through they were happening in slow motion, where moving objects seems to blend together, causing double vision.

Stimulants or psychoactive drugs including some medication, caffeine, herbs ephedrine, cocaine, methylphenidate, amphetamines, modafinil pluoroquinolone drugs, associated withy more server as well s chronic types of insomnia.

Shifting of hormones those precede menstruation and those in menopause life problems like, stress, fear, anxiety, or mental tension or the unsatisfactory sex life are also among causes of insomnia. It can also be common after loss of love one. Overall, degree and symptoms of its severity affect each individual differently and depending on the mental, physical conditions and personality or attitude.