Mouth taping techniques: vertical, horizontal, X-shape and full lip tape compared

There are four common mouth taping techniques: a vertical strip down the center of the lips, a horizontal strip across them, an X-shape, and full-coverage lip tape. The studies mostly used small strips or patches, and no study has compared one technique with another. A small strip that keeps your lips together and leaves the corners of your mouth open is the simplest place to start.

What are the main mouth taping techniques?

The main mouth taping techniques are the vertical center strip, the horizontal strip, the X-shape and full-coverage lip tape. All four aim to keep your lips gently closed so you breathe through your nose. They differ in how much skin they cover, how well they hold and how quickly you can take them off.

• A vertical center strip is a short piece of tape running from just under the nose, down over both lips. It covers the middle of the mouth and leaves the corners open.
• A horizontal strip runs across the lips from side to side. Some shaped mouth tapes, such as Titan's oval strip, are designed to sit this way.
• An X-shape is two strips crossed over the center of the lips, or one piece cut into that shape.
• Full-coverage lip tape is a larger patch or seal that covers most or all of the lips.

Cleveland Clinic describes mouth taping as using medical-grade, skin-safe adhesive tape, and Sleep Foundation recommends a porous tape intended for use on human skin. Whichever technique you choose, the tape itself matters as much as the placement. Our guide to which type of mouth tape is best covers the materials.

What technique did the mouth taping studies use?

The mouth taping studies mostly used a small strip or a patch over the lips, not tape across the whole lower face. The 2022 study in Healthcare trimmed 3M silicone hypoallergenic tape to 4 cm and placed it on the philtrum, the groove under the nose, spanning the upper and lower lips. That's a vertical center strip.

In that study, 20 mouth breathers with mild sleep apnea wore the tape for a week. Their median snoring index fell by about half, and 13 of the 20 cut their snoring by at least 50%. The study excluded people whose tape had been dislodged by morning.

The 2015 pilot study in Otolaryngology-Head and Neck Surgery took a different approach. It used a porous oral patch, a skin pad made of three layers: a silicone sheet, polyurethane foam and polyurethane film. All 30 participants, who had mild sleep apnea and breathed through their mouths, slept with their mouths closed while wearing it, and their snoring index fell from 146.7 to 40.0 snores an hour.

A registered clinical trial of silicone mouth tape, NCT06587256, describes its method as a single piece of silicone tape placed vertically over the lips. The trial record says that when the tape is positioned properly, the participant can still inhale, exhale and cough around it if needed, but will tend to keep the mouth closed. A 2009 asthma study used microporous tape at night but didn't change asthma control, which is a reminder that the research on what mouth tape does is narrow.

The research is also small. A 2025 systematic review in PLOS One found 10 studies on mouth taping and similar methods and rated all of them as poor quality. Eight of the 10 used adhesive tape or a sealing device to close the mouth, and two used a chin strap. None compared one taping technique with another, so the comparisons below are practical rather than proven.

How do the techniques compare?

The four techniques trade coverage against ease of removal. Smaller strips are gentler and quicker to take off. Bigger shapes hold more firmly but cover more skin. This table sums up the differences.

What are the pros and cons of a vertical strip?

A vertical strip is the gentlest mouth taping technique and the one closest to what researchers used. It's a short piece of tape from under the nose down over the center of both lips. It keeps the lips together while leaving the sides of the mouth free, and it's easy to peel off with one hand.

The downside is hold. A narrow strip has less adhesive in contact with your lips, and the top end sits on the upper lip, where a mustache or stubble can stop it sticking. If yours keeps lifting, our guide to why mouth tape falls off at night covers the common causes.

What are the pros and cons of a horizontal strip?

A horizontal strip covers more of the lips than a vertical one, so it usually holds better, and some shaped mouth tapes are designed to be worn this way. It also spreads the adhesive across the lips rather than relying on the upper lip, which can help if you have facial hair.

The trade-off is that it covers more skin, and a strip that's too wide can reach the corners of the mouth. Choose a size that stops short of the corners. Our guides to mouth tape with a beard and the best mouth tape for beginners have more on fit.

What are the pros and cons of X-shaped tape?

X-shaped tape gives a firm hold because it crosses the lips in two directions. Some people like it if a single strip keeps lifting. No study has tested it, though, and it has real drawbacks. It uses two pieces of tape, covers more skin, and takes longer to remove than a single strip.

If you try an X, keep both strips short enough to leave the corners of your mouth uncovered. Fold a small tab on the top strip so you can peel the whole thing off quickly.

Is full-coverage lip tape a good idea?

Full-coverage lip tape seals the whole mouth, which gives the firmest hold but leaves the least room to breathe or cough around it. The porous oral patch in the 2015 study was a shaped device of this kind, designed for the purpose, and used in a study setting. That's different from covering your mouth with a large piece of ordinary tape at home.

For most people, a smaller strip does the job. You only need enough tape to keep your lips gently together.

Why does leaving the corners of your mouth open matter?

Leaving the corners of your mouth open matters because it keeps a little room to breathe or cough around the tape if you need to. The NCT06587256 trial record describes its vertical silicone strip in exactly those terms. With the corners free, the tape encourages your lips to stay closed rather than sealing your mouth completely.

The main risk researchers worry about is a blocked nose. The 2025 PLOS One review found that 4 of the 10 studies explicitly discussed a serious risk of asphyxiation when the mouth is closed and the nose is obstructed, or if someone regurgitates. Partial coverage and fast removal are your margin of safety. Sleep Foundation suggests folding over one corner of the tape so it's easy to take off.

People also keep trying to breathe through the mouth for a while once it's taped. A 2022 study in Sleep and Breathing filmed 10 people sleeping with their mouths taped and found they puffed air into their mouths. If the first nights feel strange, short daytime practice sessions are a gentle way to build up.

How do you apply mouth tape?

To apply mouth tape, start with clean, dry lips, close your mouth gently, and lay the tape on without stretching it. 3M's guidance on medical tape says tape should be applied without tension to clean, dry skin, smoothed in place with gentle pressure to avoid gaps and wrinkles, and rubbed in place to get a good seal.

1. Wash your face and pat your lips dry. Skip lip balm right before taping.
2. Close your lips in a relaxed position.
3. Hold the strip by its edges and place it in your chosen position without pulling it tight.
4. Rub gently along the whole edge so it lies flat.
5. Fold a small tab at one end for removal.
6. Breathe through your nose for a few minutes to check it feels comfortable.

Sleep Foundation suggests testing the tape during the day first, to make sure you can breathe easily through your nose. In the morning, peel it off low and slow, as 3M recommends. Our guides to how to start mouth taping, your first night with mouth tape and how to remove mouth tape walk through each step.

What should you check before you tape?

Before you tape, check that you can breathe comfortably through your nose with your mouth closed, using our nose test. Skip the tape on nights when you're congested. If you snore loudly and also choke, gasp or feel very sleepy in the day, talk to a doctor first, as those are warning signs of sleep apnea. Mouth tape doesn't treat sleep apnea. We don't recommend mouth tape for children.

Our pick: Titan Bamboo Silk Mouth Tape (paid partner)

If you want a tape shaped for the horizontal technique, our pick is Titan Bamboo Silk Mouth Tape. We haven't tested or ranked mouth tapes ourselves; this is our recommendation, based on how Titan describes its tape.

Titan's strip comes in one oval size, 76 by 38 mm, and is worn horizontally across the lips. It's bamboo silk, which Titan describes as soft, breathable and moisture-wicking, and Titan says its SilkSeal adhesive is made to grip through stubble and full beards without tugging hair or leaving residue. There's no printed logo or ink on the side that touches skin.

Titan suggests 20 to 30 minutes of daytime practice before the first night. It says every batch is third-party tested and certified PFAS-free, and its 30-night guarantee refunds you if your sleep isn't better after 30 nights.

Read next

• Mouth taping mistakes beginners make
• Which type of mouth tape is best?
• Can you reuse mouth tape?

* This content is for informational and educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease or health condition. Talk to a qualified healthcare provider about your health.