To treat your sleep problem, you are told that you should not nap, you should set your alarm clock to wake up at the same time each day, and you should get out of bed if you cannot sleep. what sleep disorder have you been experiencing?
- enuresis
- narcolepsy
- insomnia
- rem sleep behavior disorder

Insomnia

Explanation:  Insomnia is considered as a sleeping disorder .In this case the person having disorder is not able to fall asleep or not able to stay asleep. The symptoms like sudden waking up from sleep at night hours, early waking up during morning time, not able to go back to sleep etc.

Other options are incorrect because enuresis is the lack in control of bladder, narcolepsy is falling asleep in a calm and relaxing environment and REM sleep behavior disorder defines act of coming out from the intense dreams.Thus, the correct option is insomnia