There are few other joys in life which compare with a good night's sleep and waking up fresh in the morning.
The causes of insomnia or sleeplessness may be physical, psychological or simply poor sleep hygiene. Insomnia at night leads to restless during the day, lack of concentration, drowsiness, etc.
Popping sleeping pills is a very poor solution of insomnia. One needs to determine the cause of the insomnia and address the same.
The vast majority of patients with insomnia can be cured by very simple measures. Medications usually are not required for prolonged periods.
Here are few links of interest: