The main symptom of insomnia is the hard times when trying to get some sleep at night. It may seem even easier to fall asleep at day time. Keep in mind that the process of such rest is a two-fold procedure. Falling asleep is the opposite of waking up. The person should not sleep more than 8 hours as it is not healthy. Because people with insomnia cannot sleep well at night, they cannot get up early and may sleep 10 or even more hours.