SnoreRx vs ZQuiet

SnoreRx and ZQuiet are two of the longest-established names in over-the-counter anti-snoring mouthpieces, and they're often compared because they take opposite approaches to the same job.

Both are mandibular advancement devices. They hold your lower jaw slightly forward while you sleep, which pulls the base of your tongue away from the back of your throat and keeps the airway more open. If pushing your jaw forward made your snore quieter during the self-test, either one is a reasonable choice.

SnoreRx is a boil-and-bite design. You soften it in hot water and bite into it so it takes the shape of your teeth, and you can adjust how far forward it holds your jaw. That gives a more secure, tailored fit and lets you fine-tune the setting, but it's a firmer, more structured device and takes some setup before the first night.

ZQuiet goes the other way. It's soft and hinged, needs no moulding at all, and comes with two sizes so you can start with less advancement and step up. Because the hinge lets your mouth move, many people find it more natural to wear, and it can suit people who breathe through their mouth at night.

Jaw size is the deciding factor people most often overlook. Some hands-on reviewers with larger jaws have found that a soft, one-piece design like ZQuiet can slip out during the night, while a moulded device stays put. On the other hand, people with smaller mouths often find soft designs more comfortable than firmer moulded ones.

Whichever you choose, expect a week or two of getting used to it, possible jaw soreness and extra saliva in the first few mornings, and check each brand's current trial and warranty terms before you buy.

Neither is the right choice if your snoring starts in your nose or tongue, if you have crowns, implants, loose teeth or jaw joint problems (talk to a dentist first), or if you have any signs of sleep apnea.