If you’ve scrolled through TikTok or Instagram lately, you may have seen influencers claiming that taping your mouth shut at night forces you to breathe through your nose, leading to deeper rest, reduced snoring, and even a sharper jawline.
At Can’t Sleep, we’ve seen countless trends promise miracle results for insomnia and sleep disturbances. Some have merit; others are questionable. So where does mouth taping actually land?
In this article, we’re breaking down what mouth taping is, what the science does (and doesn’t) say, the real risks involved, and what alternatives are more likely to help you sleep better.
Key Takeaways
- Mouth Taping: A practice that involves placing gentle tape over the lips during sleep to encourage nasal breathing, which may reduce snoring, improve sleep quality, and support better oral health.
- Goal: To keep the mouth closed during sleep, promoting breathing through the nose.
- Claimed benefits: Reduced snoring, improved sleep quality, reduced dry mouth, better oral health, and potentially reduced sleep apnea symptoms.
- How it works: By physically keeping the lips together, the tape trains the body to default to nasal breathing, which filters, humidifies, and warms air more effectively than mouth breathing.
- Risks: It may not be safe for everyone, particularly those with nasal congestion, severe sleep apnea, or breathing disorders. It’s important to consult a healthcare provider before trying it.
What is mouth taping?
Mouth taping is a practice where a person applies a small strip of specially designed tape (such as surgical or micropore tape) over their lips before going to sleep, either vertically or horizontally depending on the product and personal preference. Others use regular household tape, which we definitely don’t recommend. The purpose is to encourage nasal breathing during sleep instead of mouth breathing.
The practice gained traction largely through social media. The hashtag #mouthtaping has racked up over 24 million views on TikTok, fueled in part by endorsements from celebrities like Gwyneth Paltrow and Emma Roberts. Users and influencers commonly claim benefits such as:
- Reduced Snoring
- Better oxygen saturation
- Deeper, more restorative sleep
- Less dry mouth in the morning
- Cosmetic changes, such as a more defined jawline
Those claims are compelling, but popularity doesn’t equal proof. A 2024 review of the available research found only a handful of studies on mouth taping during sleep, and most of the benefits promoted online have little to no scientific backing. When a practice involves altering how you breathe while unconscious, viral appeal is no substitute for evidence.
How to Start Mouth Taping
- Choose the Right Adhesive Tape: Select a hypoallergenic adhesive tape designed specifically for skin contact. Avoid industrial tapes that can irritate your lips or leave residue.
- Prepare Your Skin: Clean and dry your lips and the surrounding area before applying the tape. This helps the tape adhere properly throughout the night.
- Apply the Tape Correctly: Place a small strip vertically or horizontally across your lips, keeping your mouth closed but not forcing it shut. Start with shorter sessions to let your body adjust.
- Monitor Your Sleep Quality: Track how you feel in the morning. If you wake up with the tape still in place and feel more rested, mouth taping may be working for you.
Why nasal breathing during sleep matters
Before we evaluate mouth tape for sleep, it’s worth understanding why nasal breathing matters in the first place, because the science behind it is well-established.
When we breathe through our nose, the air is filtered, humidified, and warmed before it ever reaches the lungs. The nasal passages trap dust, allergens, and pathogens, serving as the body’s first line of defense against airborne irritants. Mouth breathing bypasses this entire filtration system.
Nasal breathing also triggers the production of nitric oxide, a powerful molecule that dilates blood vessels, enhances oxygen transport, and even has antimicrobial properties. Research suggests that nasal breathing can improve oxygen uptake by 10–20% compared to mouth breathing, partly because nasal resistance activates deeper, more efficient diaphragmatic breathing.
Beyond oxygenation, nasal breathing stimulates the parasympathetic nervous system, our body’s “rest and digest” mode, which promotes lower blood pressure and deeper, more restorative sleep stages.
Chronic mouth breathing during sleep, on the other hand, has been linked to:
- Dry mouth and throat, increasing the risk of bad breath, tooth decay, and gum disease
- Fragmented, lower-quality sleep, with more frequent awakenings and less time spent in deep sleep stages
- Increased snoring and airway collapse, which can worsen or contribute to obstructive sleep apnea
- Facial and jaw changes over time, particularly in children who habitually mouth breathe
Nasal breathing is the way our bodies were designed to breathe during sleep. The real question is whether taping your mouth shut is a safe or effective way to achieve it.
Research doesn’t back up the social media claims
This is where enthusiasm for mouth taping starts to outpace the evidence.
As of mid-2025, research on mouth taping during sleep remains extremely limited. A 2025 systematic review published in PLOS ONE (Rhee et al.) screened 120 articles but found only 10 studies, involving just 213 patients total, that met inclusion criteria. The review rated all of them as low-quality evidence using the Newcastle-Ottawa Scale and warned of a “potentially serious risk of harm” for anyone practicing mouth taping without medical supervision.
Within that body of research, only two small studies reported meaningful improvements. A 2022 preliminary study published in Healthcare (Lee et al.) examined 20 patients with mild obstructive sleep apnea and found a 47% reduction in apnea-hypopnea index scores and improved snoring after one week of mouth taping. An earlier 2015 pilot study in Otolaryngology–Head and Neck Surgery (Huang & Young) tested porous oral patches on mild OSA patients and reported similar short-term improvements in snoring and sleep apnea severity.
However, both studies involved very small samples, short follow-up periods, and no proper control groups, making their conclusions difficult to generalize. Other studies reviewed found no significant change or flagged risks such as restricted airflow and potential asphyxiation, particularly for people with undetected nasal obstruction.
Meanwhile, claims that mouth taping can cure insomnia, dramatically improve sleep quality, or permanently change facial structure have little to no scientific support. The American Academy of Sleep Medicine does not recommend the practice, and a 2024 report in JAMA noted that experts caution against it, especially for individuals with nasal obstructions or moderate-to-severe OSA.
This doesn’t mean mouth taping can’t help anyone, but we should be clear: the benefits promoted on social media are largely anecdotal, not evidence-based. If you’re considering trying it, we strongly recommend consulting a healthcare provider first.
Potential risks to be aware of before trying mouth taping
While many people use mouth tape for sleep without issue, it’s important to understand the potential risks so you can make an informed decision and practice it safely.
Breathing obstruction
The most important consideration is airflow. If your nasal passages are partially blocked due to allergies, congestion, a deviated septum, or other structural issues, taping your mouth could restrict your ability to breathe comfortably during sleep.
People with undiagnosed or untreated sleep apnea should be especially cautious. Sleep apnea already involves repeated breathing interruptions, and mouth taping removes a backup airway that your body may rely on. This doesn’t mean mouth taping is off the table entirely, but it does mean a proper medical evaluation should come first.
If you snore loudly, wake up gasping, or feel excessively tired despite a full night’s rest, we recommend consulting a healthcare professional before trying mouth tape for sleep.
Skin sensitivity
Repeatedly applying adhesive near the delicate skin around your lips may cause:
- Contact dermatitis or mild allergic reactions
- Redness and inflammation
- Micro-tears or irritation over time
- Flare-ups of existing conditions like eczema or perioral dermatitis
If you have sensitive skin, consider starting with a hypoallergenic tape designed specifically for this purpose, and test a small patch before committing to nightly use. Discontinue if irritation develops.
Anxiety and discomfort
Some people feel uneasy with their mouth taped shut, particularly if they wake during the night. The sensation of restricted breathing, even when airflow is technically adequate, can feel unsettling.
This is especially worth considering if you experience anxiety, PTSD, or claustrophobia. If mouth taping causes stress rather than better rest, it’s counterproductive. A gentler starting point is using a porous or loosely applied tape that allows some mouth breathing if needed, helping you ease into the practice gradually.
Clarifying what you’re actually trying to fix
Mouth taping is often positioned as a catch-all sleep hack, but in most cases, people reach for it because of a specific underlying problem. Pinpointing that problem is the fastest path to a solution that actually works.
If your goal is better sleep quality
If you’re dealing with insomnia or consistently waking up feeling unrefreshed, mouth tape for sleep is unlikely to move the needle. Poor sleep quality rarely comes down to a single factor, and it almost never comes down to whether your mouth is open or closed.
We recommend starting with the fundamentals of sleep hygiene:
- Stick to a consistent sleep and wake schedule, even on weekends
- Keep your bedroom dark, cool, and quiet
- Cut back on screens in the hour before bed
- Limit caffeine after midday and avoid alcohol close to bedtime
If those adjustments don’t lead to meaningful improvement, cognitive behavioral therapy for insomnia (CBT-I) is widely regarded as the gold standard treatment. It’s more effective than medication over the long term and carries no risk of dependency.
If mouth breathing is the concern
Waking up with a dry mouth, cracked lips, or being told you breathe through your mouth at night suggests something structural or medical is going on, not a habit you can tape your way out of.
Common underlying causes include:
- Allergies or chronic nasal congestion
- A deviated septum or other structural obstruction
- Enlarged tonsils or adenoids
- Deeply ingrained habitual breathing patterns
An ENT specialist or allergist can identify the root cause and recommend targeted treatments, whether that’s nasal corticosteroid sprays, allergy management, or corrective procedures when warranted.
Myofunctional therapy, a program of targeted exercises for the tongue and facial muscles, has also shown promise in retraining nasal breathing patterns, particularly in children and younger adults.
If snoring is the main issue
Snoring is the single most common reason people turn to mouth tape for sleep, but it can also be an early warning sign of something more serious.
Persistent snoring warrants a proper evaluation for obstructive sleep apnea, a condition that can only be confirmed through a sleep study. If apnea is ruled out, several evidence-based alternatives are worth trying:
- Switching to side sleeping instead of sleeping on your back
- Using a mandibular advancement device
- Trying nasal strips or internal nasal dilators
- Losing weight, when relevant
- Avoiding alcohol in the hours before bed
For diagnosed sleep apnea, CPAP therapy remains the most effective and well-studied treatment, with dental appliances and surgical options available for cases where CPAP isn’t tolerated.
If you’re still curious about trying mouth taping
We’ve laid out the evidence, the gaps, and the risks. If you’ve weighed all of that and still want to give mouth tape for sleep a try, we’re not going to stop you. But we do want you to do it as safely as possible.
Don’t try mouth taping if you:
- Have diagnosed or suspected sleep apnea
- Experience chronic nasal congestion or obstruction
- Have respiratory conditions like asthma or COPD
- Struggle with anxiety, panic attacks, or claustrophobia
- Have sensitive, easily irritated, or broken skin around the mouth
If none of the above apply, here’s how to approach it responsibly:
- Use the right tape. Only use tape specifically designed for mouth taping during sleep, or medical-grade micropore tape. Never use duct tape, packing tape, or any strong household adhesive, these can damage your skin and create a serious breathing hazard.
- Start small. Try a short vertical strip over the center of your lips rather than covering your entire mouth. Some people also fold a small tab at one end for easy removal, or leave a slight vent to allow limited mouth breathing if needed.
- Test during the day first. Wear the tape for 15–30 minutes while you’re awake and relaxed. If it triggers discomfort, anxiety, or any breathing difficulty, mouth taping likely isn’t for you.
- Monitor how you feel. Pay attention to your mornings. If you’re waking up anxious, short of breath, with the tape removed (a sign your body rejected it), or noticing no improvement after a week or two, stop.
- Don’t treat it as a long-term fix. Even if mouth taping seems to help in the short term, it doesn’t address the underlying cause of mouth breathing, snoring, or poor sleep. Use it as a temporary experiment, not a permanent solution.
Most importantly, if sleep problems persist, talk to a healthcare professional. The alternatives we’ve outlined above, from sleep hygiene improvements and CBT-I to nasal treatments and sleep studies, are safer, better studied, and far more likely to deliver lasting results than any strip of tape.
References
- The Independent – Reports #mouthtaping surpassed 24 million views on TikTok: the-independent.com
- Lee et al. (2022) — “The Impact of Mouth-Taping in Mouth-Breathers with Mild Obstructive Sleep Apnea: A Preliminary Study,” Healthcare https://pubmed.ncbi.nlm.nih.gov/36141367/
- Rhee et al. (2025) — Systematic review on the safety and efficacy of mouth taping for sleep-disordered breathing, PLOS ONE https://pubmed.ncbi.nlm.nih.gov/40397877/
- American Academy of Sleep Medicine — Position on mouth taping not being recommended for OSA patients https://aasm.org
- Cleveland Clinic — Expert guidance on mouth taping risks and limitations https://health.clevelandclinic.org/mouth-taping
- University of Connecticut (UConn Health) — Expert commentary on lack of evidence for mouth taping https://health.uconn.edu
- Rhee et al. (2025) – Systematic review in PLOS ONE: https://pubmed.ncbi.nlm.nih.gov/40397877/
- Lee et al. (2022) – Preliminary study in Healthcare: https://pubmed.ncbi.nlm.nih.gov/36141367/
- Huang & Young (2015) – Pilot study in Otolaryngology–Head and Neck Surgery: https://pubmed.ncbi.nlm.nih.gov/25450408/
