Best Anti-Snoring Devices for Side Sleepers

Side sleeping already helps with snoring, but it doesn't always solve it. Here's a straightforward look at which devices genuinely work with your position rather than against it.

Why side sleeping changes what you need

Most anti-snoring devices are designed and tested with sleepers in mind generally, not specifically side sleepers. That matters because some devices that work well on your back can feel bulky, dig in, or shift out of place when you're lying on your side. A good device for side sleepers needs to be low-profile, stay put through the night, and not press uncomfortably against a pillow or your arm.

If you're not sure whether side sleeping suits you at all, our guide to the best sleep position for snorers covers the basics of why position matters so much for airway snoring in the first place.

Mandibular advancement devices (MADs)

These gum-shield style devices hold your lower jaw slightly forward, which helps keep the airway at the back of your throat more open. They're widely considered one of the more effective options for straightforward snoring, and most modern ones are slim enough to wear comfortably on your side.

What to look for

• A boil-and-bite or custom-fit design, so it sits snugly and won't loosen as you turn over
• Low bulk at the sides of the mouth, since some bulkier designs can feel odd against a pillow
• An adjustable advancement setting, so you can find a comfortable level rather than the maximum one

Who it suits

MADs tend to suit people whose snoring comes from the throat relaxing and narrowing, which is common and often improves further when combined with side sleeping. They're not suitable if you have certain dental issues, TMJ problems, or loose teeth, so it's worth checking with a dentist first if you have any concerns.

Tongue-stabilising devices (TSDs)

These work differently, using gentle suction to hold the tongue forward rather than adjusting the jaw. Because they don't rely on jaw positioning, some people find them stay in place well when side sleeping, though the tip can occasionally feel intrusive at first.

TSDs are worth considering if a MAD isn't suitable for you dentally, or if your snoring seems more related to the tongue falling back rather than general throat narrowing. They take a night or two of getting used to, and it's honest to say they're not everyone's favourite in terms of comfort.

Positional aids and wearables

If you already know you snore far less on your side but struggle to stay there through the night, a positional device might help more than a mouth device at all.

Options worth knowing

• Vibrating position trainers: small devices worn around the chest or neck that give a gentle nudge if you roll onto your back. Generally well tolerated and easy to combine with other devices.
• Wedge-shaped or bumper pillows: designed to make back sleeping physically awkward, encouraging you to stay side-on without any wearable device at all.
• Supportive side-sleeper pillows: the right pillow shape can keep your neck properly aligned, which matters for airway position too. Our pillows for snoring review goes into more detail on what actually helps.

These aids don't treat snoring directly, but for people whose snoring is largely positional, they can make a real difference on their own or alongside a mouth device.

Apps like SnoreLab: useful, but only as a starting point

Apps such as SnoreLab record and score your snoring overnight, which is genuinely useful for understanding patterns, including whether your snoring actually improves on your side as you assume it does. They're not a treatment, but they're a sensible, low-cost way to check whether a change, be it a new pillow, a positional trainer, or a MAD, is actually working before you commit to anything more expensive.

What we'd skip

Be cautious of nasal strips or sprays marketed as complete solutions for side sleepers specifically, as they address a different cause (nasal restriction) and won't help if your snoring is due to throat or tongue positioning. Similarly, very cheap, one-size mouthpieces with no adjustment often end up uncomfortable or ineffective, and many people abandon them within a week.

For a fuller breakdown of device types and how they compare across the board, not just for side sleepers, our full comparison of anti-snoring devices in the UK is a good next stop. You can also browse the wider reviews hub for individual product write-ups.

When to see a GP instead

Devices can help with ordinary snoring, but they're not a substitute for medical advice if something more serious is going on. See your GP if you or a partner notice loud snoring with gasping or choking, pauses in breathing during sleep, or persistent daytime exhaustion despite a full night's sleep. These can be signs of sleep apnoea, which needs proper assessment rather than an over-the-counter device.

The honest takeaway

For most side sleepers, a well-fitted mandibular advancement device combined with a supportive pillow is the most reliable starting point. If you struggle to stay on your side at all, a positional trainer is worth adding in. Track things with an app for a couple of weeks before deciding what's actually helping, and don't be afraid to try a different type if the first one doesn't suit you. Comfort matters as much as effectiveness, since a device you stop wearing after three nights won't help anyone.