Left on their own, people with delayed sleep phase disorder would stay up until very late, sometimes until 4 or 5 a.m. They like to get up very late in the morning or early afternoon. Often they are referred to as night owls.

Many teenagers like to stay up late and sleep late in the morning. Sometimes this is because they want to socialize at that time of the day. However, it can also be due to the natural delay in the circadian sleep / wake rhythm at their age of development.

Teenagers with this sleep disorder often have a very hard time getting up in the morning for school. Even if they go to sleep at a regular time, such as 11 p.m., they toss and turn for hours like someone with insomnia. They difference is, unlike an insomniac, people with delayed sleep phase disorder have no difficulty staying asleep. They do have a very difficult time getting up early in the morning. Teenagers with this sleep disorder are very tired during the day and may even fall asleep in the classroom. The exact cause of this sleep disorder is not known. It is known for certain that it is a circadian rhythm problem.

Treatment for this sleep disorder is available for people that need to get onto a more traditional sleep / wake schedule. The  types of treatment include, bright light, chronotherapy,  melatonin and over- the-counter  prescribed sleeping pills.

Bright light treatment for delayed sleep phase disorder uses bright light to trick the brain's circadian clock . Exposure to bright light shifts the circadian rhythm if it is administered within a few hours of the body's lowest temperature at night.

Using chronotherapy as a treatment for someone with delayed sleep phase disorder requires a block of time one week long. Each day bedtime is delayed by three hours successively. For example, for someone that falls asleep at 2 a.m. but wants to fall asleep at 11. p.m., their bedtime would move to 5 a.m. on the first day. The next day it would move to 8 a.m. and continue this cycle for a week. A teenager suffering with delayed sleep phase disorder would need a week off from school in order to complete this therapy. Once the desired bed time is reached it is very important to keep a consistent wake up time.

There are several treatments involving various drugs that are used to treat delayed sleep phase disorder. Melatonin has been successful in changing the sleep cycle of people with this sleep disorder. Prescription medication such as Ramelteon, and other sleeping pills, have been   successful in treating teenagers and adults with delayed sleep phase disorder.

If your teenager has trouble falling asleep and always wants to stay up late, be aware of the possibility that a sleep disorder may be present.

Some kids can also really benefit from a mattress upgrade. Are they still sleeping on that mattress you bought for them out of the crib? Switch out their old, worn out twin size mattress and get them at least a full size, something supportive. Their young spines need support and comfort.