ZQuiet Review: Flexible Hinged Mouthpiece for Snoring

What Is ZQuiet?

ZQuiet is an FDA-cleared mandibular advancement device (MAD) that uses a unique "Living Hinge" design to advance the lower jaw while still allowing natural mouth movement. Unlike rigid boil-and-bite mouthpieces, ZQuiet comes ready to use straight out of the box with no moulding required.

How Does It Work?

Like all MADs, ZQuiet holds the lower jaw in a forward position to keep the airway open. What makes it different is the flexible hinge that connects the upper and lower trays. This allows you to open and close your mouth, speak, and even drink water without removing the device.

Two-Size Comfort System

ZQuiet ships with two mouthpieces:

• Size 1: 2mm advancement — the starting size for most users
• Size 2: 6mm advancement — for users who need more jaw advancement or find Size 1 insufficient

The idea is to start with Size 1 and move to Size 2 if needed. Most mild snorers find Size 1 sufficient.

Pros

• No boil-and-bite moulding needed — ready to use immediately
• Living Hinge allows natural jaw movement
• Two sizes included for progressive treatment
• FDA-cleared, BPA and latex-free
• Allows mouth breathing through the open front
• Thin profile — less bulky than many competitors

Cons

• Not adjustable — only two fixed advancement positions
• One-size-fits-most may not suit all jaw sizes
• Can feel loose compared to custom-moulded devices like AirSnore
• Shorter lifespan than rigid MADs (typically 6–9 months)
• Higher price than budget MADs like SnoreMeds
• Not suitable for denture wearers

ZQuiet vs Other MADs

ZQuiet's main advantage is convenience — no moulding, immediate use, jaw mobility. Its main disadvantage is precision: devices like SnoreRx offer millimetre-level adjustment that ZQuiet can't match.

For a detailed comparison, see MAD vs TSD and our Best Mouthpieces roundup.

UK Availability

ZQuiet ships to the UK from the US. Expect delivery in 7–14 days with potential customs charges. Some UK Amazon sellers stock it with faster delivery but at a premium.

Our Verdict

ZQuiet is an excellent choice for people who want a ready-to-use mouthpiece with natural jaw movement. The Living Hinge design genuinely improves comfort compared to rigid MADs. However, if you want precision adjustability or a custom-moulded fit, SnoreRx or AirSnore are better options.