• On TikTok, people are taping their mouths shut while they sleep at night, a practice called "mouth taping."
  • Mouth taping fans say the practice prevents dry mouth and snoring, which promotes better sleep.

TikTok users are taping their mouths shut before bed and say the practice, called mouth taping, leads to higher quality sleep and better oral health.

Researchers have only studied mouth taping on small groups of people with sleep apnea and asthma. One study showed mouth taping could be beneficial for people with sleep apnea, while another found it ineffective for people with asthma.


MOUTH TAPING EVERY NIGHT!...Better #sleep, better #oralhealth and no #drymouth #sleeping #mouthbreathing #breathing #healthy #energy #breathe

♬ original sound - Corylrodriguez


I used to sleep 9hours every night & still be tired. Now I sleep 6.5-7hours & have more energy than ever!(mouthtape is #myotape ) #mouthbreathers

♬ original sound - erica.jpeg

Since no conclusive research exists on the practice and its effects on normally healthy people, doctors remain cautious about it and warn of potential side effects like poor sleep, anxiety, or trouble breathing. Still, some people swear by sealing their lips at night.

Mouth-tapers say the practice prevents bad breath and restless nights

TikTok users and health experts who have tried mouth taping themselves use breathable and thin tape or mouth strips over their lips, and report benefits like better oral hygiene and sleep.

When it comes to oral health, mouth taping can prevent dry mouth, which often leads to other conditions like bacterial overgrowth, cavities, and gum disease, dentist Dr. Rob Raimondi told Insider.

That's because mouth taping blocks air, and any allergens or dryness in the air, that could contribute to poor oral hygiene, according to the Sleep Foundation.

If you have trouble nose breathing, don't try mouth taping

Despite the purported anecdotal benefits of mouth taping, experts say you should speak with a doctor before trying it out.

People who have trouble breathing through their nose due to allergies, sleep apnea, or a deviated septum should avoid attempting mouth taping on their own, since it could obstruct your ability to breathe, according to the Sleep Foundation.

Instead, you can try sleeping on your side, applying nasal strips, creating a bedtime routine, or taking allergy medication, says the Sleep Foundation website.

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