Snoring is not one problem — it is a sound produced by any tissue vibrating in a narrowed airway, and there are seven common ways that narrowing happens. Identifying which of the seven applies to you is the difference between buying the right fix and buying four wrong ones.

The Seven Causes

1. Sleep position. On your back, the tongue and soft palate fall backward and narrow the throat. This is the most common single cause — and the most fixable (positional pillows and trainers exist for exactly this).
2. Nasal obstruction. Congestion, allergies, or a deviated septum force mouth breathing and create suction collapse downstream. Cheap nasal fixes are the match — see the strip and dilator guide.
3. Alcohol and sedatives. Both relax airway muscles hours before you notice. Cutting evening drinks 3–4 hours before bed is free and disproportionately effective.
4. Excess weight. Neck circumference narrows the airway from outside. Even modest weight loss reduces snoring intensity measurably.
5. Anatomy you were born with. A low, thick soft palate, large tonsils, or a small jaw narrow the airway structurally. This is the group that mouthpieces address — mandibular advancement mechanically compensates for a small jaw (how to choose one).
6. Age. Muscle tone everywhere declines, throat included. Snoring typically worsens through middle age — which means the management habits above matter more over time, not less.
7. Obstructive sleep apnea. Not a cause of simple snoring but a medical condition where the airway fully closes, repeatedly, all night. This one is a physician's job — the warning signs are listed here.

Two-of-Three Rule

Most real-world snorers have two or three causes stacked. That is why single-product fixes disappoint: a mouthpiece cannot help a snorer whose real driver is nightcap-plus-back-sleeping. The efficient order is: remove the lifestyle triggers you control, fix the position you sleep in, then add a device matched to your anatomy.

The 15-Minute Self-Assessment

• Record one night on a phone app, or ask a partner: gasps, pauses, choking? → medical route first.
• Snoring only on your back? → positional cause; pillows and trainers apply.
• Worse after wine or beer? → trigger-based; fix the schedule.
• Clear nose, any position, every night? → structural; mouthpiece is the evidence-backed tool.