Bottom line: VitalSleep takes it overall (8.8 vs 7.9), leading most on comfort and best suited for best warranty (60-night money-back plus 1-year free replacements). Choose PureSleep if a lower price is your priority (it costs $60.00 less).
Quick answer: VitalSleep and PureSleep are both FDA-cleared boil-and-bite jaw-advancing mouthpieces (MADs). VitalSleep ($119.95) can be adjusted in 1 mm steps whenever you like, comes in two sizes, and adds a year of free replacements. PureSleep ($59.95) costs half as much, but its jaw position is one of three presets chosen when you assemble it. After that it can’t be fine-tuned. Both give you about 60 days to return it. Choose VitalSleep if you plan to wear a mouthpiece every night. Choose PureSleep to find out cheaply whether jaw advancement helps you at all.
Both devices work the same way: they grip your upper and lower teeth and hold the lower jaw slightly forward, which pulls the tongue forward and keeps the airway behind it more open (see how snoring mouthpieces work). They are even built from similar materials. According to their FDA filings, both use a firm polypropylene shell lined with a softer EVA plastic that you mold to your teeth in hot water. The differences are in how the jaw position is set, sizing, breathing room, and what happens after the trial ends.
How we tested: We bought and tested both VitalSleep and PureSleep ourselves; our hands-on notes and video reviews are below.
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VitalSleep vs PureSleep: Side-by-Side
| Feature | VitalSleep | PureSleep |
|---|---|---|
| Type | Adjustable MAD, boil-and-bite | MAD with preset positions, boil-and-bite |
| Price | $119.95 | $59.95 |
| Jaw adjustment | 1 mm steps with a screw on each side, any night (maker lists 0–8 mm) | Three preset positions about 4 mm apart (typical bite, mild underbite, severe underbite; flipped over for an overbite), chosen at assembly |
| Change position after fitting? | Yes, without re-molding | Effectively no; you’d reassemble and re-mold |
| Sizes | Two (men’s and ~10% smaller women’s) | One |
| Breathing opening | Front breathing port | Small breathing holes |
| Materials | Polypropylene + EVA; BPA- and latex-free | Polypropylene + EVA; BPA- and latex-free |
| Money-back guarantee | 60 nights from delivery (vitalsleep.com orders) | 60 days, refund or exchange |
| After the trial | 1 year of free replacements | No warranty advertised |
| FDA 510(k) | K201719 (2021), aid to reduce snoring, adults 18+ | K190058 (2019), aid to reduce snoring, adults 18+ |
| Our score | 8.8 / 10 | 7.9 / 10 |
| Best for | Nightly long-term use, small mouths, grinders | A low-cost first try |
Prices checked on the makers’ sites in October 2026. Check the merchant for current pricing.
Adjustment: Dial It In vs Pick a Preset
This is the main reason VitalSleep scores higher. The right amount of jaw advancement is different for every person. Too little and the airway still narrows. Too much and your jaw and teeth take more strain than they need to.
VitalSleep lets you correct that guess. You wear it at the starting position for a few nights, then turn the screw on each side clockwise with the included tool to move the lower tray forward in 1 mm steps, keeping both sides on the same mark. If your jaw gets sore, you back off one step. You can change it any night without re-molding.
PureSleep makes the choice up front. Before molding, you join the upper and lower trays in one of three slots matched to your bite: typical bite, mild underbite or severe underbite. For an overbite, the manual in the kit we tested says to use the center slots and flip the device over. The slots are roughly 4 mm apart. Once it’s molded, that position is effectively locked. If it turns out too mild or too strong, the only fix is to reassemble it in another slot and re-mold, and a 4 mm jump is a large one.
PureSleep’s presets do have one use: they suit people whose bite isn’t average. VitalSleep’s maker says it’s not suitable for a large overbite, while PureSleep has a setting meant for one. More in how to adjust a snoring mouthpiece.
Winner: VitalSleep.
Fit, Size and Breathing
VitalSleep comes in a standard size and a women’s size with an arch about 10% smaller. The maker exchanges sizes for free. PureSleep comes in one size, and its two full trays inside a firm shell can feel bulky in a small mouth. If that’s a concern, see best snoring mouthpiece for small mouths.
For breathing, VitalSleep has a front opening designed to let you breathe through your mouth. PureSleep’s breathing holes are small: in our test the opening was only about 3 mm, against about 6 mm for VitalSleep, so they don’t pass much air. That matters if you breathe through your mouth at night or often have a stuffy nose (see best snoring mouthpiece for mouth breathers).
Both are boil-and-bite, and with both a shallow impression is the usual reason the device falls out. VitalSleep’s steps are 45 seconds in hot water, 3 seconds in cold, then an even, gentle bite. It can be re-molded, and the maker replaces it free if the fit fails. PureSleep’s liner can be re-heated and re-molded too, and independent reviews cite up to three attempts. Our fitting guide covers technique for both.
Winner: VitalSleep.
Comfort and the First Weeks
Our scorecards give VitalSleep 8.5 for comfort and PureSleep 7.6. The early side effects are the same for both: morning jaw or tooth soreness, extra saliva, and a bite that feels “off” for a little while after you take the device out. These usually fade over the first week or two. The difference is what you can do about soreness. With VitalSleep you back off a millimeter. With PureSleep you either wait it out or reassemble in a less-advanced slot and re-mold.
Pain that lasts more than a couple of weeks, clicking or locking in the jaw joint, or a bite that doesn’t return to normal are reasons to stop and see a dentist. See jaw pain from a snoring mouthpiece and how long it takes to get used to a mouthpiece.
Winner: VitalSleep.
Price, Guarantee and Long-Term Cost
PureSleep is $59.95 and VitalSleep is $119.95, a $60 difference. The trial periods are nearly identical: 60 days for PureSleep (refund or exchange, prepaid return label for U.S. orders) and 60 nights from delivery for VitalSleep (refund, prepaid U.S. return label, direct orders only).
The difference comes after the trial. Neither lasts forever. PureSleep’s liner typically lasts about 4–12 months, and VitalSleep’s maker says about a year. Grinders get less from both. VitalSleep replaces the device free for the first year. PureSleep doesn’t advertise a warranty, though a replacement at $59.95 still costs half as much as one VitalSleep. If you don’t grind your teeth, PureSleep is clearly cheaper. If you do, VitalSleep’s replacements close much of the gap. See how long snoring mouthpieces last.
Winner: PureSleep on price; VitalSleep on warranty.
Who Should Buy VitalSleep?
- Nightly snorers who want to fine-tune the jaw position, and adjust it again later if needed.
- People with smaller mouths who want the smaller size.
- Mouth breathers who need a bigger front opening.
- Teeth grinders who will use the free first-year replacements.
Read the full VitalSleep review.
Who Should Buy PureSleep?
- First-time buyers who want to find out cheaply whether a jaw-advancing device helps at all.
- People with a noticeable overbite or underbite who suit one of the presets.
- Anyone who wants a low-cost spare or travel device.
Read the full PureSleep review.
A Third Option: Fine Adjustment at PureSleep’s Price
If you like VitalSleep’s 1 mm adjustment but not its price, SnoreRx ($59.99) adjusts in 1 mm steps for about the cost of PureSleep. It comes in one size and has a 30-night guarantee. The hinged SnoreRx Plus ($99.99) adds jaw movement and take-apart cleaning. Compare them in PureSleep vs SnoreRx and SnoreRx vs VitalSleep.
Our Hands-On Tests
We bought and tested both of these mouthpieces ourselves and filmed each test for our YouTube channel.
VitalSleep
We bought VitalSleep and tested it ourselves. The kit came with a booklet, a case, and the fitting and adjustment tools. To move the lower tray forward you turn a screw on each side clockwise with the tool, a little at a time. The front airway opening is about 6 mm, wide enough for the tongue to come forward into it. The molding is gentle: you get a light, slightly customized impression rather than deep tooth marks. Our tester snored less over two nights of wearing it, going by the snoring-app recordings, and an overnight oxygen recording stayed above the report’s warning line. One note: the booklet in the kit we tested said to soak it for exactly 10 seconds because it overheats easily, while VitalSleep’s website now says about 45 seconds. Follow the instructions that come with yours.
Full details, photos and screenshots are in our VitalSleep review.
PureSleep
We bought PureSleep and tested it ourselves. The box held the device in its case and an instruction manual. It comes as two pieces that you join in one of three positions before fitting: the front pair of holes for a typical bite, the center holes for a mild underbite and the back holes for a severe underbite (for an overbite, the manual says to use the center holes and flip the device over). We fitted it with 2 minutes in water at a low boil, a 15-second wait and a firm 30-second bite with the lower jaw held forward, after which the soft plastic fused and locked in the setting. The airway opening is only about 3 mm, which makes it a poorer choice for mouth breathers. Over three nights of wearing it, the recordings showed reduced snoring, and an overnight oxygen recording showed normal breathing.
Full details, photos and screenshots are in our PureSleep review.
What our testing adds to this comparison: Both reduced our tester’s snoring. The clearest difference we saw first-hand was breathing room: VitalSleep’s front opening is about 6 mm, PureSleep’s only about 3 mm. And PureSleep’s setting is locked once the plastic fuses during fitting, while VitalSleep can still be adjusted with its screws.
One tester’s nights are a real-world example, not a clinical trial. Snoring varies from person to person and night to night, and a snoring app or fingertip oxygen recording is not a sleep test.
Who Should Skip Both
- Anyone under 18.
- People with braces, full dentures, loose teeth or advanced gum disease. Ask a dentist first about partials, crowns, bridges and implants. VitalSleep’s maker also rules out implants less than a year old.
- People with TMJ pain or a jaw that clicks or locks.
- Anyone with central sleep apnea or a serious breathing disorder.
- Anyone who might have obstructive sleep apnea. Loud snoring with gasping, pauses in breathing or heavy daytime sleepiness should be checked with a sleep test first. Both devices are cleared only to reduce snoring, not to treat apnea (see can snoring mouthpieces treat sleep apnea?).
If your teeth or jaw rule out a MAD, a tongue-stabilizing device such as Good Morning Snore Solution may suit you better. See who should not use a snoring mouthpiece.
FAQ: VitalSleep vs PureSleep
Which is better, VitalSleep or PureSleep?
VitalSleep for most nightly users. It adjusts in 1 mm steps, comes in two sizes, has a larger breathing opening and a year of free replacements. PureSleep is the better buy if you mainly want a cheap first try or you have an overbite or underbite that suits its presets.
Is PureSleep adjustable?
Only at the start. You choose one of three positions about 4 mm apart when you assemble the trays, and the position is set once it’s molded. VitalSleep can be adjusted in 1 mm steps at any time.
Are both FDA-cleared?
Yes. PureSleep was cleared for over-the-counter use in 2019 (K190058) and VitalSleep in 2021 (K201719), both as aids to reduce snoring in adults 18 and older. Neither is cleared to treat sleep apnea.
Which has the better guarantee?
The return windows are about the same: 60 days for PureSleep and 60 nights from delivery for VitalSleep. VitalSleep adds a year of free replacements after that. PureSleep doesn’t advertise a warranty.
Can you close your mouth with VitalSleep?
Many people can, the maker says. People with smaller mouths may not be able to close fully, and the maker notes this doesn’t stop it from working. The smaller size can help.
How do you clean them?
Brush both daily with a soft toothbrush and toothpaste in cool water, or use a denture or mouthpiece cleaning tablet. Never use hot water after fitting, because it can soften the lining. See how to clean a snoring mouthpiece.
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