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The science of quieter nights
4.6/5 from 1,100+ reviews

How a snoring mouthpiece works

Snoring starts in your jaw. Here is what happens when you sleep, and how VitalSleep helps.

Couple resting together in bed
FDA-cleared
Made in the USA
Patented Accu-Adjust System
600,000+ sold since 2011

See it work in two minutes

A full walkthrough. What it is, how it fits, and how you adjust it.

  • Helps open the airway so air moves quietly while you sleep
  • Moves the lower jaw forward with the patented Accu-Adjust System, set to your snoring
  • Molds to your teeth for a fit that stays put
  • Adjustable and comfortable, which many basic mouthpieces are not

Watch: the full walkthrough (1:58)

Where snoring starts

You fall asleep. Your jaw relaxes and slides back. Your tongue slides back with it.

Now your airway is tight. Air has to push past loose tissue. The tissue shakes. That shake is the sound your partner hears.

Snoring is the sound of air fighting for room.
Woman awake in bed next to her snoring partner

The patented Accu-Adjust System

A snoring mouthpiece holds your lower jaw a little forward. That keeps your tongue out of the way. VitalSleep goes one step further. Its patented design lets you open your airway as much as your snoring needs, one millimeter at a time.

front airway back of throat
Jaw and tongue slide back. The airway gets tight. The trays hold your jaw in place. Your tongue stays with it. A few small steps forward. More room. Quieter air.

Simple drawing. Not to scale.

Start low

Begin at the lowest setting. It feels gentle on night one.

Move up in 1 mm steps

Every few nights, turn it one step forward. The range is 0 to 8 mm. Stop when the room is quiet.

Matched to how hard you snore

Light snorer? A low setting may be all you need. Loud snorer? Move it further forward. A fixed mouthpiece guesses. You set yours to your snoring.

Only as far as you need

Every jaw is different. Most people find their setting in the first week.

Watch: how to adjust it (0:41)

What happens while you sleep

1

Your jaw stays forward

The trays stop it from sliding back.

2

Your tongue stays forward too

It is attached to your jaw, so it moves with it.

3

Your airway stays open

Nothing is crowding it now.

4

Air moves quietly

Less crowding. Less shaking. Less noise.

Fitted to you in minutes

Hot water softens it in 45 seconds. Bite down for 30 seconds. It molds to your teeth. No dentist. No waiting.

VitalSleep comes in two sizes. Not sure which? Take the 10-second fit quiz. Get the wrong one? We send the other. Free size exchange.

The front opening lets you breathe through your mouth. It is free of latex, BPA and metal, and made in the USA.

Not sure which size? Take the fit quiz

Watch: how to fit it (0:34)

Mouthpiece in a cup of hot water1

Heat to soften

Drop it in hot water for 45 seconds.

Biting down on the mouthpiece to shape it2

Mold to your teeth

Bite down firmly for 30 seconds.

Turning the Accu-Adjust setting on the lower tray3

Set the opening

Move the lower tray forward in 1 mm steps until it feels right.

Person asleep in bed4

Sleep quietly

Wear it every night. Rinse it in the morning.

Myth vs. science

Myth

  • It pulls your jaw way out of place.
  • I breathe through my mouth, so it won't work for me.
  • One size can't fit everyone.

Science

  • The move is small. It mostly stops your jaw from sliding back.
  • VitalSleep leaves room to breathe through your mouth.
  • It molds to your teeth, comes in two sizes, and you set the position to match your snoring.
Couple relaxed and smiling in bed

What the research shows

These studies tested jaw-forward mouthpieces as a group, not VitalSleep itself. They show why holding the jaw forward matters. They are not a promise. Tap a card to read the study.

96%fewer snores per hourEuropean Journal of Orthodontics · Read the study
76%less time spent snoringApplied Sciences, 2024 · Read the study
18studies point the same waySleep Medicine Reviews · Read the study
65%+treatment success rateEuropean Archives of Oto-Rhino-Laryngology · Read the study
SnoreLab screenshot before use, loud snoring spikes through the night
Before
SnoreLab screenshot during use, quiet night with almost no loud snoring
During use

One customer's recording

Real SnoreLab data from one customer. Before: loud spikes all night. During use: a quiet, steady line. Same phone. Same bed. This is one person, not a study. Results vary.

“I did try a couple of different things, and VitalSleep really, really helps.”
Jeanette, VitalSleep customer
4.6/5 from 1,100+ reviews 90% would recommend 600,000+ sold since 2011
VitalSleep adjustable anti-snoring mouthpiece

Ready for quieter nights?

$189.95

  • Reduces snoring for peaceful sleep
  • Opens the airway to support quiet breathing
  • Restful nights for you and your bed partner

Size: Men’s SizeWomen’s Size

60-night money-back guaranteeFree size exchangeOne-year unlimited warranty

Not sure which size? Take the 10-second fit quiz

What to expect

This is what customers most often tell us. Results vary.

Night 1

You mold it and wear it

Start at the lowest setting. Extra saliva is normal. So is knowing it is in your mouth.

Week 1

Your jaw settles in

Some early jaw or gum tenderness is common and passes. Move forward 1 mm at a time, not all at once.

Month 1

You find your setting

Somewhere between 0 and 8 mm there is a spot that works for you. Many couples say this is when they move back into the same room.

VitalSleep is FDA-cleared to reduce snoring. It is not for sleep apnea. If you wake up gasping or still tired after a full night, talk to a doctor first.

Common questions

What does it feel like?

Like a small, soft sports guard. The first night or two feel new. You may notice extra saliva or feel your jaw. That fades. Start at the lowest setting and it feels gentle.

How long until it is quieter?

Some people notice a change the first night. Others need a week or two to find their setting. Move up one step every few nights. Results vary.

Can I breathe through my mouth?

Yes. There is room for air through the mouth, so a stuffy nose is not a problem.

What if I get the wrong size?

We send the other size. Free size exchange. You also have 60 nights to decide, with a full money-back guarantee.

Does it help with sleep apnea?

No. VitalSleep is FDA-cleared to reduce snoring. It is not for sleep apnea. If you stop breathing at night, gasp awake, or wake up tired most days, see a doctor first.

How long does it last?

Every VitalSleep comes with a one-year unlimited warranty. If anything goes wrong in that year, we replace it. Free replacement.

Quieter nights are one step away

Two sizes. 60 nights to try it in your own bed.

Free US shippingShips from the USA
60-night money-back guaranteeTry it in your own bed
Free size exchangeWrong size? We send the other.
One-year unlimited warrantyFree replacement

VitalSleep is an FDA-cleared Class II device for the reduction of snoring. It is not meant to treat sleep apnea or any other medical condition. Results vary. The research figures on this page come from studies of jaw-advancement mouthpieces as a group. They are not studies of VitalSleep. If you think you have sleep apnea, see a doctor. VitalSleep is protected by U.S. Patent No. 12,201,549.

Snoring has a cause. VitalSleep works on it.

The VitalSleep adjustable anti-snoring mouthpiece gently moves the lower jaw forward to open the airway. FDA-cleared. Made in the USA. Over 600,000 adults since 2011.

Transform Your Sleep

60 nights to decide. Free replacements for 1 year.