Sleeping on your side may improve your symptoms. To keep you off your back, some doctors suggest you pin a tube sock filled with a couple of tennis balls to the back of your PJs.
One study of the tennis ball technique showed it did help some people. Of the 50 people who used the method and reported back, 38% said they were still doing it after 6 months. They said they had better sleep quality, more daytime alertness, and quieter snoring.