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    The goal of sleep apnea treatment is to open your airway so you can breathe better at night. Many devices can help that happen. Among the most common options are CPAP machines, mouth appliances, and specially designed pillows.

    Here’s a look at what's available -- from made-to-order gear to do-it-yourself methods -- and how they work.

    Mouth Devices

    You can get these custom-made or buy them over the counter. Whatever type you choose, you’ll need to see a dentist to have it fitted.

    • Mandibular advancement device (MAD). This looks like a mouth guard that athletes wear. It snaps over your top and bottom teeth. Hinges let your lower jaw ease forward, which keeps your tongue and soft palate stable so your airway stays open while you’re asleep.
    • Tongue retaining device. This is sort of like a splint that holds your tongue in place to keep your airway open. Doctors don’t prescribe it as often as the MAD. It can be harder to get used to and less comfortable.

    You can also buy a “boil and bite'' device over the counter or online. You heat it in hot water, then bite into it to make it fit your mouth. The aim is to move your lower jaw forward to improve your breathing.

    These devices may not work as well as the ones that are custom-made. Researchers in Europe studied 35 people with mild sleep apnea. Some used custom-made devices and others used the ''boil and bite" products. Only the custom-made ones reduced the average number of apnea problems per hour.

    Before you buy a mouth device, talk to your doctor about which one would be best for you.

    Position Pillows

    Do a quick online search, and you’ll find many types of pillows to relieve sleep apnea. They're designed for use with a CPAP machine or without. They come in different styles, including a wedge shape, which raises your upper body.

    Sleeping on your back with your body elevated from the waist up may help keep your airway from collapsing and, in turn, improve your condition, the American Sleep Apnea Association says. Use foam wedges, not soft pillows.