If a person experiences difficulty in sleeping, there may be an underlying problem that causes this. The most reasonable explanation for this problem is having a sleep disorder. A person with a sleep disorder does not just wake up several times throughout the night. The worse sleep disorders can even cause a person to remain awake all night long. Some sleep disorders may only cut a few hours of sleep from a person and still make him productive during the day. Others, however, can totally deprive him of sleep and alter his physical, mental, emotional, and social conditions, making him unfit for daily work and activity.
Some of the most common sleep disorders include insomnia, narcolepsy, sleep apnea, restless legs syndrome, sleep walking, and many more. Insomnia is well known for its effect on sleep behavior. When a person has insomnia, he is unable to sleep or has difficulty in sleeping, but the root cause of the problem is undeterminable. Narcolepsy is a condition where a person involuntarily falls asleep during inappropriate times of the day.
Sleep apnea is a breathing disorder where a person experiences cessation of breath while asleep that causes lack of oxygen circulation in the body and frequent moments of awakening. Treatment for this includes CPAP and dental appliances, among others. Restless leg syndrome is a condition exhibited by the irresistible urge to move the legs. This problem is related to Periodic limb movement disorder, where either or both the arms and legs move involuntarily while asleep. Sleepwalking causes a person to do activities that are usually done while awake, like walking, eating, and talking, even while the person is asleep.
There are also other less common forms of sleep disorders. Delayed sleep phase syndrome happens when a person sleeps and wakes up at times that are not normal, but the sleeping itself is not affected.