Unlike most researchers, the engineers at ImThera Medical just might consider it a compliment if someone called their product a “snooze.” The experimental device is designed to treat sleep apnea, a breathing disorder that can disrupt sleep and trigger serious complications, including an increased risk for heart disease and stroke, as well as daytime sleepiness so severe that sufferers often fall asleep at the wheel. The implant, which wraps around a nerve connected to the tongue, is now being tested in a small clinical trial in Europe.
via Technology Review: A Stimulating Treatment for Sleep Apnea.
Biosingularity 
Thats quite interesting. There was also another related treatment that explored the affects of sleep apnea based on which nostril is being used at which particular time. These kind of experiments might possibly pave the way for a cure to sleep apnea in time to come!
That sounds like a promising approach. By having the implant, that will help with people having to use a mask. This would surely easy peoples problems.
This is great but I think you should not only rely on the devices.
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