They're many kinds of sleep disorders. I would be very interested in knowing what your symptoms are. In the sleep lab I work, we see more obstructed sleep apnea than other types of disorders. Unfortunately one is not limited to just one disorder.
The treatment of choice for sleep apnea is CPAP (Continuous positive airway pressure). It's nearly 100% effective compared to other apnea treatments. No doubt, it saves lives!
CPAP splints the upper airway obstructive tissue that otherwise can collapse when muscle and tissue tone becomes relaxed during sleep, ESP in REM stage sleep (that occurs about every 2 hours) when all muscle tone is lost (except in the heart, diaphragm and eyes). I've seen apneas over 2 minutes long! Oxygen levels in the blood goes down off the charts. If this is happening many times an hour, 24/7, the toll it takes is monumental.

My husband has sleep apnea. He sleeps with an apnea machine with a built in humidifier. It forces open his airway, and his sleep is more restful. My little brother has an interrupted sleep pattern, which has symptoms almost identical to narcolepsy. He takes a mild sedative each night at bed to keep him in a restful sleep, and a mild stimulant in the morning to help him stay awake during the day. Both of his medications, and my husband's apnea machine, were obtained by prescription.

What kind of disorder.

The Buteyko method helps people to reduce sleep problems such as snoring and sleep apnea. This is because breathing that is too forceful or too fast for sound sleep cools, dries and irritates your airways making them swell. This narrows the upper airway, making it harder to breathe.
Also breathing too much causes you to lose too much carbon dioxide, and this also narrows airways. The lack of carbon dioxide also stimulates the nervous system, increasing your alertness and also reducing your ability to keep still for any length of time. These aspects of the problem encourage insomnia and restless legs.
When you use the Buteyko method you begin to restore a more normal breathing pattern, which allows sleep to be quieter, sounder and more restorative.