I have Sleep Apnea. Is there such a thing as pills to take to help me breath properly at night?

Such a thing as intermittent sleep apnea?

I have the symptoms and have made audiotapes of my gasping/snoring. Yet some nights I don’t gasp or snore much. I don’t smoke, drink, or sleep on my back.

Is a sleep disorder such as sleep apnea considered a disability by the US government?